diff --git a/.vscode/settings.json b/.vscode/settings.json
index 9c70c1a..ed4a5c0 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,16 +1,17 @@
 {
-    "search.exclude": {
-      "*.jst": true,
-      "*.md": true,
-      "*.yaml": true,
-      "*.yml": true,
-      "*.css": true,
-      "package*.json": true
-    },
-    "typescript.tsdk": "node_modules/typescript/lib",
-    "editor.formatOnSave": true,
-    "editor.codeActionsOnSave": {
-      "source.fixAll.eslint": true,
-      "source.fixAll": true
-    }
-  }
\ No newline at end of file
+  "search.exclude": {
+    "*.jst": true,
+    "*.md": true,
+    "*.yaml": true,
+    "*.yml": true,
+    "*.css": true,
+    "non-property-errors-logs.txt": true,
+    "package*.json": true
+  },
+  "typescript.tsdk": "node_modules/typescript/lib",
+  "editor.formatOnSave": true,
+  "editor.codeActionsOnSave": {
+    "source.fixAll.eslint": true,
+    "source.fixAll": true
+  }
+}
\ No newline at end of file
diff --git a/src/Archive/Redirect.ts b/src/Archive/Redirect.ts
index dbd3e2c..3e1e69e 100644
--- a/src/Archive/Redirect.ts
+++ b/src/Archive/Redirect.ts
@@ -125,7 +125,7 @@ const Redirect = {
     $.set(items)
     $.extend(Conf, items)
     Redirect.selectArchives()
-    return cb?.()
+    return cb
   },
 
   to(dest, data) {
diff --git a/src/Filtering/Filter.ts b/src/Filtering/Filter.ts
index 862ac6f..4f50680 100644
--- a/src/Filtering/Filter.ts
+++ b/src/Filtering/Filter.ts
@@ -378,7 +378,7 @@ const Filter = {
     }
   },
 
-  addFilter(type: FilterType, re: string, cb?: () => void) {
+  addFilter(type: FilterType, re: string, cb?: Callbacks) {
     if (!$.hasOwn(Config.filter, type)) { return }
     return $.get(type, Conf[type], function (item) {
       let save = item[type]
@@ -392,7 +392,7 @@ const Filter = {
     })
   },
 
-  removeFilters(type: FilterType, res: FilterObj[] | Map<string, FilterObj[]>, cb?: () => void) {
+  removeFilters(type: FilterType, res: FilterObj[] | Map<string, FilterObj[]>, cb?: Callbacks) {
     return $.get(type, Conf[type], function (item) {
       let save = item[type]
       const filterArray = Array.isArray(res) ? res : [...res.values()].flat()
diff --git a/src/General/BoardConfig.ts b/src/General/BoardConfig.ts
index 9da6208..a891c6c 100644
--- a/src/General/BoardConfig.ts
+++ b/src/General/BoardConfig.ts
@@ -3,13 +3,7 @@ import { Conf, g } from "../globals/globals"
 import $ from "../platform/$"
 import { dict, HOUR } from "../platform/helpers"
 
-/*
- * decaffeinate suggestions:
- * DS102: Remove unnecessary code created because of implicit returns
- * DS104: Avoid inline assignments
- * DS205: Consider reworking code to avoid use of IIFEs
- * Full docs: https://github.com/decaffeinate/decaffeinate/blob/main/docs/suggestions.md
- */
+
 const BoardConfig = {
   cbs: [],
 
@@ -19,7 +13,7 @@ const BoardConfig = {
     const now = Date.now()
     if (now - (2 * HOUR) >= ((middle = Conf['boardConfig'].lastChecked || 0)) || middle > now) {
       return $.ajax(`${location.protocol}//a.4cdn.org/boards.json`,
-        { onloadend: this.load })
+        { onloadend: this.load }, dict())
     } else {
       const { boards } = Conf['boardConfig']
       return this.set(boards)
diff --git a/src/General/Get.ts b/src/General/Get.ts
index f471198..d0ac943 100644
--- a/src/General/Get.ts
+++ b/src/General/Get.ts
@@ -1,13 +1,7 @@
 import { Conf, g } from "../globals/globals"
 import $ from "../platform/$"
 
-/*
- * decaffeinate suggestions:
- * DS101: Remove unnecessary use of Array.from
- * DS102: Remove unnecessary code created because of implicit returns
- * DS207: Consider shorter variations of null checks
- * Full docs: https://github.com/decaffeinate/decaffeinate/blob/main/docs/suggestions.md
- */
+
 const Get = {
   url(type, IDs, ...args) {
     let f, site
diff --git a/src/General/Header.ts b/src/General/Header.ts
index 6e48eb8..99ecc3a 100644
--- a/src/General/Header.ts
+++ b/src/General/Header.ts
@@ -12,13 +12,7 @@ import Get from "./Get"
 import Settings from "./Settings"
 import UI from "./UI"
 
-/*
- * decaffeinate suggestions:
- * DS101: Remove unnecessary use of Array.from
- * DS102: Remove unnecessary code created because of implicit returns
- * DS104: Avoid inline assignments
- * Full docs: https://github.com/decaffeinate/decaffeinate/blob/main/docs/suggestions.md
- */
+
 const Header = {
   init() {
     $.onExists(doc, 'body', () => {
@@ -404,7 +398,7 @@ const Header = {
     Header.setBarFixed(this.checked)
 
     Conf['Fixed Header'] = this.checked
-    return $.set('Fixed Header', this.checked)
+    return $.set('Fixed Header', this.checked, true)
   },
 
   setShortcutIcons(show) {
diff --git a/src/General/Settings.tsx b/src/General/Settings.tsx
index c68b169..2fb8d8c 100644
--- a/src/General/Settings.tsx
+++ b/src/General/Settings.tsx
@@ -71,9 +71,9 @@ const Settings = {
             return localStorage.setItem('4chan-settings', JSON.stringify(settings))
           } catch (error) {
             return Object.defineProperty(window, 'Config', {value: {disableAll: true}})
-          }})
+          }}, true)
       } else {
-        return $.global(() => Object.defineProperty(window, 'Config', {value: {disableAll: true}}))
+        return $.global(() => Object.defineProperty(window, 'Config', {value: {disableAll: true}}), true)
       }
     }
   },
@@ -81,7 +81,7 @@ const Settings = {
   open(openSection) {
     let dialog, sectionToOpen
     if (Settings.dialog) { return }
-    $.event('CloseMenu')
+    $.event('CloseMenu', null)
 
     Settings.dialog = (dialog = $.el('div',
       { id: 'overlay' }
@@ -258,7 +258,7 @@ Enable it on boards.${location.hostname.split('.')[1]}.org in your browser's pri
         inputs[key].checked = val
         inputs[key].parentNode.parentNode.dataset.checked = val
       }
-    })
+    }, 'Settings')
 
     const div = $.el('div',
       {innerHTML: '<button></button><span class="description">: Clear manually-hidden threads and posts on all boards. Reload the page to apply.'})
@@ -299,6 +299,8 @@ Enable it on boards.${location.hostname.split('.')[1]}.org in your browser's pri
         }
       }
       return button.textContent = `Hidden: ${hiddenNum}`
+    }, function() {
+      return button.textContent = 'Hidden: 0'
     })
     $.on(button, 'click', function() {
       this.textContent = 'Hidden: 0'
@@ -312,7 +314,7 @@ Enable it on boards.${location.hostname.split('.')[1]}.org in your browser's pri
             localStorage.removeItem(`4chan-hide-t-${boardID}`)
           }
         }
-        return ($.delete(['hiddenThreads', 'hiddenPosts']))
+        return ($.delete(['hiddenThreads', 'hiddenPosts'], dict())
       })
     })
     return $.after($('input[name="Stubs"]', section).parentNode.parentNode, div)
@@ -326,7 +328,7 @@ Enable it on boards.${location.hostname.split('.')[1]}.org in your browser's pri
       // Don't export cached JSON data.
       delete Conf2['boardConfig']
       return (Settings.downloadExport({version: g.VERSION, date: Date.now(), Conf: Conf2}))
-    })
+    }, 'Settings')
   },
 
   downloadExport(data) {
@@ -918,6 +920,9 @@ vp-replace
           Settings[key].call(input)
         }
       }
+    }, function(err) {
+      if (err) { return }
+      return $.id('lastarchivecheck').textContent = new Date(Conf['lastarchivecheck']).toLocaleString()
     })
 
     const listImageHost = $.id('list-fourchanImageHost')
@@ -944,6 +949,9 @@ vp-replace
       $.extend(Conf, itemsArchive)
       Redirect.selectArchives()
       return Settings.addArchiveTable(section)
+    }, function(err) {
+      if (err) { return }
+      return $.id('lastarchivecheck').textContent = new Date(Conf['lastarchivecheck']).toLocaleString()
     })
 
     const boardSelect    = $('#archive-board-select', section)
@@ -1069,7 +1077,7 @@ vp-replace
   saveSelectedArchive() {
     return $.get('selectedArchives', Conf['selectedArchives'], ({selectedArchives}) => {
       (selectedArchives[this.dataset.boardid] || (selectedArchives[this.dataset.boardid] = dict()))[this.dataset.type] = JSON.parse(this.value)
-      $.set('selectedArchives', selectedArchives)
+      $.set('selectedArchives', selectedArchives, () => Conf['selectedArchives'] = selectedArchives)
       Conf['selectedArchives'] = selectedArchives
       return Redirect.selectArchives()
     })
@@ -1157,7 +1165,7 @@ vp-replace
         const val = items[key]
         inputs[key].value = val
       }
-    })
+    }, true)
   },
 
   keybind(e) {
diff --git a/src/Miscellaneous/IDPostCount.ts b/src/Miscellaneous/IDPostCount.ts
index 3b7e6f2..d17e8ee 100644
--- a/src/Miscellaneous/IDPostCount.ts
+++ b/src/Miscellaneous/IDPostCount.ts
@@ -1,13 +1,10 @@
 import Callbacks from "../classes/Callbacks"
+import Post from "../classes/Post"
+import Thread from "../classes/Thread"
 import Get from "../General/Get"
 import { Conf, g } from "../globals/globals"
 import $ from "../platform/$"
 
-/*
- * decaffeinate suggestions:
- * DS102: Remove unnecessary code created because of implicit returns
- * Full docs: https://github.com/decaffeinate/decaffeinate/blob/main/docs/suggestions.md
- */
 const IDPostCount = {
   init() {
     if ((g.VIEW !== 'thread') || !Conf['Count Posts by ID']) { return }
@@ -21,19 +18,19 @@ const IDPostCount = {
     })
   },
 
-  node() {
+  node(): void {
     if (this.nodes.uniqueID && (this.thread === IDPostCount.thread)) {
       return $.on(this.nodes.uniqueID, 'mouseover', IDPostCount.count)
     }
   },
 
-  count() {
+  count(): string {
     const { uniqueID } = Get.postFromNode(this).info
     let n = 0
-    IDPostCount.thread.posts.forEach(function (post) {
+    IDPostCount.thread.posts.forEach((post: Post) => {
       if (post.info.uniqueID === uniqueID) { return n++ }
     })
     return this.title = `${n} post${n === 1 ? '' : 's'} by this ID`
   }
 }
-export default IDPostCount
+export default IDPostCount
\ No newline at end of file
diff --git a/src/Miscellaneous/ThreadLinks.ts b/src/Miscellaneous/ThreadLinks.ts
index e2a4d44..ab39c2c 100644
--- a/src/Miscellaneous/ThreadLinks.ts
+++ b/src/Miscellaneous/ThreadLinks.ts
@@ -1,18 +1,22 @@
 import Callbacks from "../classes/Callbacks"
-import { Conf,g } from "../globals/globals"
+import type Post from "../classes/Post"
+import { Conf, g } from "../globals/globals"
 
 const ThreadLinks = {
   init(): void {
     if ((g.VIEW !== 'index') || !Conf['Open Threads in New Tab']) { return }
 
-    Callbacks.Post.push({
+    const postCallback: Post = {
       name: 'Thread Links',
-      cb:   this.node.bind(this)
-    })
-    Callbacks.CatalogThread.push({
+      cb: this.node.bind(this)
+    }
+    const catalogThreadCallback: Post = {
       name: 'Thread Links',
-      cb:   this.catalogNode.bind(this)
-    })
+      cb: this.catalogNode.bind(this)
+    }
+
+    Callbacks.Post.push(postCallback)
+    Callbacks.CatalogThread.push(catalogThreadCallback)
   },
 
   node(): void {
@@ -29,4 +33,4 @@ const ThreadLinks = {
   }
 }
 
-export default ThreadLinks
+export default ThreadLinks
\ No newline at end of file
diff --git a/src/Miscellaneous/Time.ts b/src/Miscellaneous/Time.ts
index c7a6bf4..e7f9f49 100644
--- a/src/Miscellaneous/Time.ts
+++ b/src/Miscellaneous/Time.ts
@@ -2,31 +2,54 @@ import Callbacks from "../classes/Callbacks"
 import { Conf, g } from "../globals/globals"
 import $ from "../platform/$"
 
-/*
- * decaffeinate suggestions:
- * DS102: Remove unnecessary code created because of implicit returns
- * Full docs: https://github.com/decaffeinate/decaffeinate/blob/main/docs/suggestions.md
- */
-const Time = {
-  init() {
-    if (!['index', 'thread', 'archive'].includes(g.VIEW) || !Conf['Time Formatting']) { return }
+interface TimeFormatters {
+  a(): string;
+  A(): string;
+  b(): string;
+  B(): string;
+  d(): string;
+  e(): number;
+  H(): string;
+  I(): string;
+  k(): number;
+  l(): number;
+  m(): string;
+  M(): string;
+  p(): string;
+  P(): string;
+  S(): string;
+  y(): string;
+  Y(): number;
+  '%'(): string;
+}
 
-    return Callbacks.Post.push({
+const Time = {
+  init(): void {
+    if (!['index', 'thread', 'archive'].includes(g.VIEW) || !Conf['Time Formatting']) {
+      return
+    }
+
+    Callbacks.Post.push({
       name: 'Time Formatting',
-      cb: this.node
+      cb: this.node,
     })
   },
 
-  node() {
-    if (!this.info.date || this.isClone) { return }
+  node(): void {
+    if (!this.info.date || this.isClone) {
+      return
+    }
     const { textContent } = this.nodes.date
-    return this.nodes.date.textContent = textContent.match(/^\s*/)[0] + Time.format(Conf['time'], this.info.date) + textContent.match(/\s*$/)[0]
+    this.nodes.date.textContent =
+      textContent.match(/^\s*/)[0] +
+      Time.format(Conf['time'], this.info.date) +
+      textContent.match(/\s*$/)[0]
   },
 
-  format(formatString, date) {
-    return formatString.replace(/%(.)/g, function (s, c) {
+  format(formatString: string, date: Date): string {
+    return formatString.replace(/%(.)/g, (s: string, c: string): string => {
       if ($.hasOwn(Time.formatters, c)) {
-        return Time.formatters[c].call(date)
+        return (Time.formatters as TimeFormatters)[c].call(date)
       } else {
         return s
       }
@@ -40,7 +63,7 @@ const Time = {
     'Wednesday',
     'Thursday',
     'Friday',
-    'Saturday'
+    'Saturday',
   ],
 
   month: [
@@ -55,49 +78,95 @@ const Time = {
     'September',
     'October',
     'November',
-    'December'
+    'December',
   ],
 
-  localeFormat(date, options, defaultValue) {
+  localeFormat(date: Date, options: Intl.DateTimeFormatOptions, defaultValue: string): string {
     if (Conf['timeLocale']) {
       try {
         return Intl.DateTimeFormat(Conf['timeLocale'], options).format(date)
-      } catch (error) { }
+      } catch (error) {/* empty */ }
     }
     return defaultValue
   },
 
-  localeFormatPart(date, options, part, defaultValue) {
+  localeFormatPart(
+    date: Date,
+    options: Intl.DateTimeFormatOptions,
+    part: string,
+    defaultValue: string,
+  ): string {
     if (Conf['timeLocale']) {
       try {
         const parts = Intl.DateTimeFormat(Conf['timeLocale'], options).formatToParts(date)
-        return parts.map(function (x) { if (x.type === part) { return x.value } else { return '' } }).join('')
-      } catch (error) { }
+        return parts
+          .map((x) => (x.type === part ? x.value : ''))
+          .join('')
+      } catch (error) { /* empty */ }
     }
     return defaultValue
   },
 
-  zeroPad(n) { if (n < 10) { return `0${n}` } else { return n } },
+  zeroPad(n: number): string | number {
+    return n < 10 ? `0${n}` : n
+  },
 
   formatters: {
-    a() { return Time.localeFormat(this, { weekday: 'short' }, Time.day[this.getDay()].slice(0, 3)) },
-    A() { return Time.localeFormat(this, { weekday: 'long' }, Time.day[this.getDay()]) },
-    b() { return Time.localeFormat(this, { month: 'short' }, Time.month[this.getMonth()].slice(0, 3)) },
-    B() { return Time.localeFormat(this, { month: 'long' }, Time.month[this.getMonth()]) },
-    d() { return Time.zeroPad(this.getDate()) },
-    e() { return this.getDate() },
-    H() { return Time.zeroPad(this.getHours()) },
-    I() { return Time.zeroPad((this.getHours() % 12) || 12) },
-    k() { return this.getHours() },
-    l() { return (this.getHours() % 12) || 12 },
-    m() { return Time.zeroPad(this.getMonth() + 1) },
-    M() { return Time.zeroPad(this.getMinutes()) },
-    p() { return Time.localeFormatPart(this, { hour: 'numeric', hour12: true }, 'dayperiod', (this.getHours() < 12 ? 'AM' : 'PM')) },
-    P() { return Time.formatters.p.call(this).toLowerCase() },
-    S() { return Time.zeroPad(this.getSeconds()) },
-    y() { return this.getFullYear().toString().slice(2) },
-    Y() { return this.getFullYear() },
-    '%'() { return '%' }
-  }
+    a(): string {
+      return Time.localeFormat(this, { weekday: 'short' }, Time.day[this.getDay()].slice(0, 3))
+    },
+    A(): string {
+      return Time.localeFormat(this, { weekday: 'long' }, Time.day[this.getDay()])
+    },
+    b(): string {
+      return Time.localeFormat(this, { month: 'short' }, Time.month[this.getMonth()].slice(0, 3))
+    },
+    B(): string {
+      return Time.localeFormat(this, { month: 'long' }, Time.month[this.getMonth()])
+    },
+    d(): string | number {
+      return Time.zeroPad(this.getDate())
+    },
+    e(): number {
+      return this.getDate()
+    },
+    H(): string | number {
+      return Time.zeroPad(this.getHours())
+    },
+    I(): string | number {
+      return Time.zeroPad((this.getHours() % 12) || 12)
+    },
+    k(): number {
+      return this.getHours()
+    },
+    l(): number {
+      return (this.getHours() % 12) || 12
+    },
+    m(): string | number {
+      return Time.zeroPad(this.getMonth() + 1)
+    },
+    M(): string | number {
+      return Time.zeroPad(this.getMinutes())
+    },
+    p(): string {
+      return Time.localeFormatPart(this, { hour: 'numeric', hour12: true }, 'dayperiod', this.getHours() < 12 ? 'AM' : 'PM')
+    },
+    P(): string {
+      return Time.formatters.p.call(this).toLowerCase()
+    },
+    S(): string | number {
+      return Time.zeroPad(this.getSeconds())
+    },
+    y(): string {
+      return this.getFullYear().toString().slice(2)
+    },
+    Y(): number {
+      return this.getFullYear()
+    },
+    '%'(): string {
+      return '%'
+    },
+  },
 }
-export default Time
+
+export default Time
\ No newline at end of file
diff --git a/src/Miscellaneous/Tinyboard.ts b/src/Miscellaneous/Tinyboard.ts
index 8915b4f..55391e4 100644
--- a/src/Miscellaneous/Tinyboard.ts
+++ b/src/Miscellaneous/Tinyboard.ts
@@ -10,12 +10,11 @@ interface QRPostDetail {
 }
 
 const Tinyboard = {
-  init() {
+  init(): void {
     if (g.SITE.software !== 'tinyboard') { return }
     if (g.VIEW === 'thread') {
-      return Main.ready(() => $.global(function() {
-        let base
-        const { boardID, threadID } = document.currentScript.dataset
+      return Main.ready(() => $.global(function (data: { boardID: string, threadID: number }) {
+        const { boardID, threadID } = data
         const threadIdNum = +threadID
         const form = document.querySelector('form[name="post"]') as HTMLFormElement
         window.$(document).ajaxComplete((event, request, settings) => {
@@ -29,16 +28,15 @@ const Tinyboard = {
             if (redirect && (originalNoko != null) && !originalNoko && !noko) {
               detail.redirect = redirect
             }
-          } catch (error) {}
+          } catch (error) { }
           event = new CustomEvent('QRPostSuccessful', { bubbles: true, detail })
           return document.dispatchEvent(event)
         })
         const originalNoko = window.tb_settings?.ajax?.always_noko_replies;
-        ((base = window.tb_settings || (window.tb_settings = {})).ajax || (base.ajax = {})).always_noko_replies = true
-      }
-      , { boardID: g.BOARD.ID, threadID: g.THREADID }))
+        ((window.tb_settings || (window.tb_settings = {})).ajax || (window.tb_settings.ajax = {})).always_noko_replies = true
+      }, { boardID: g.BOARD.ID, threadID: g.THREADID }))
     }
   }
 }
 
-export default Tinyboard
+export default Tinyboard
\ No newline at end of file
diff --git a/src/Posting/Captcha.t.ts b/src/Posting/Captcha.t.ts
index 323e5b7..0a013e5 100644
--- a/src/Posting/Captcha.t.ts
+++ b/src/Posting/Captcha.t.ts
@@ -2,25 +2,22 @@ import { d, g } from "../globals/globals"
 import $ from "../platform/$"
 import QR from "./QR"
 
-/*
- * decaffeinate suggestions:
- * DS102: Remove unnecessary code created because of implicit returns
- * Full docs: https://github.com/decaffeinate/decaffeinate/blob/main/docs/suggestions.md
- */
 const CaptchaT = {
   init() {
     if (d.cookie.indexOf('pass_enabled=1') >= 0) { return }
     if (!(this.isEnabled = !!$('#t-root') || !$.id('postForm'))) { return }
 
-    const root = $.el('div', {className: 'captcha-root'})
-    this.nodes = {root}
+    const root = $.el('div', { className: 'captcha-root' })
+    this.nodes = { root }
 
     $.addClass(QR.nodes.el, 'has-captcha', 'captcha-t')
     return $.after(QR.nodes.com.parentNode, root)
   },
 
   moreNeeded() {
+    return this.isEnabled && !this.nodes.container
   },
+  currentThread: null,
 
   getThread() {
     let threadID
@@ -30,26 +27,28 @@ const CaptchaT = {
     } else {
       threadID = '' + QR.posts[0].thread
     }
-    return {boardID, threadID}
+    return { boardID, threadID }
   },
 
-  setup(focus) {
+  setup(focus?: boolean) {
     if (!this.isEnabled) { return }
 
     if (!this.nodes.container) {
-      this.nodes.container = $.el('div', {className: 'captcha-container'})
+      this.nodes.container = $.el('div', { className: 'captcha-container' })
       $.prepend(this.nodes.root, this.nodes.container)
       CaptchaT.currentThread = CaptchaT.getThread()
-      $.global(function() {
+      $.global(function () {
         const el = document.querySelector('#qr .captcha-container')
         window.TCaptcha.init(el, this.boardID, +this.threadID)
-        return window.TCaptcha.setErrorCb(err => window.dispatchEvent(new CustomEvent('CreateNotification', {detail: {
-          type: 'warning',
-          content: '' + err
-        }})
+        return window.TCaptcha.setErrorCb(err => window.dispatchEvent(new CustomEvent('CreateNotification', {
+          detail: {
+            type: 'warning',
+            content: '' + err
+          }
+        })
         ))
       }
-      , CaptchaT.currentThread)
+        , CaptchaT.currentThread)
     }
 
     if (focus) {
@@ -59,14 +58,14 @@ const CaptchaT = {
 
   destroy() {
     if (!this.isEnabled || !this.nodes.container) { return }
-    $.global(() => window.TCaptcha.destroy())
+    $.global(() => window.TCaptcha.destroy(), CaptchaT.currentThread)
     $.rm(this.nodes.container)
     return delete this.nodes.container
   },
 
   updateThread() {
     if (!this.isEnabled) { return }
-    const {boardID, threadID} = (CaptchaT.currentThread || {})
+    const { boardID, threadID } = (CaptchaT.currentThread || {})
     const newThread = CaptchaT.getThread()
     if ((newThread.boardID !== boardID) || (newThread.threadID !== threadID)) {
       CaptchaT.destroy()
@@ -91,7 +90,7 @@ const CaptchaT = {
   setUsed() {
     if (!this.isEnabled) { return }
     if (this.nodes.container) {
-      return $.global(() => window.TCaptcha.clearChallenge())
+      return $.global(() => window.TCaptcha.clearChallenge(), CaptchaT.currentThread)
     }
   },
 
diff --git a/src/classes/DataBoard.ts b/src/classes/DataBoard.ts
index a6d9aac..d01aaed 100644
--- a/src/classes/DataBoard.ts
+++ b/src/classes/DataBoard.ts
@@ -65,7 +65,7 @@ export default class DataBoard {
       this.data.version = (this.data.version || 0) + 1
       return $.set(this.key, this.data, () => {
         if (needSync) { this.sync?.() }
-        return cb?.()
+        return cb
       })
     })
   }
@@ -77,7 +77,7 @@ export default class DataBoard {
         for (const change of DataBoard.changes) { change() }
         this.sync?.()
       }
-      return cb?.()
+      return cb
     })
   }
 
diff --git a/src/classes/Notice.ts b/src/classes/Notice.ts
index 6cb434a..19fbddf 100644
--- a/src/classes/Notice.ts
+++ b/src/classes/Notice.ts
@@ -3,6 +3,8 @@ import { d } from "../globals/globals"
 import $ from "../platform/$"
 import { SECOND } from "../platform/helpers"
 
+type NoticeType = "success" | "warning" | "error"
+
 export default class Notice {
   private el: HTMLDivElement
   private timeout?: number
@@ -10,7 +12,7 @@ export default class Notice {
   private closed = false
 
   constructor(
-    private type: string,
+    private type: NoticeType,
     private content: string | Node,
     timeout?: number,
     onclose?: () => void
@@ -36,7 +38,7 @@ export default class Notice {
     this.onclose = onclose
   }
 
-  private setType(type: string) {
+  private setType(type: NoticeType) {
     this.el.className = `notification ${type}`
   }
 
@@ -69,4 +71,4 @@ export default class Notice {
     $.rm(this.el)
     this.onclose?.()
   }
-}
+}
\ No newline at end of file
diff --git a/src/classes/Thread.ts b/src/classes/Thread.ts
index d0b8f27..f05b9c6 100644
--- a/src/classes/Thread.ts
+++ b/src/classes/Thread.ts
@@ -4,7 +4,6 @@ import Board from "./Board"
 import Post from "./Post"
 import SimpleDict from "./SimpleDict"
 
-
 export default class Thread {
   ID: number | string
   OP: Post
@@ -26,7 +25,6 @@ export default class Thread {
   json: JSON
   catalogView: Node
   nodes: { root: Post }
-  toString() { return this.ID }
 
   constructor(ID: number | string, board: Board) {
     this.board = board
@@ -50,8 +48,7 @@ export default class Thread {
     this.OP = null
     this.catalogView = null
 
-    this.nodes =
-      { root: null }
+    this.nodes = { root: null }
 
     this.board.threads.push(this.ID, this)
     g.threads.push(this.fullID, this)
@@ -66,14 +63,18 @@ export default class Thread {
     }
     icon.title = `This thread is on page ${pageNum} in the original index.`
     icon.textContent = `[${pageNum}]`
-    if (this.catalogView) { return this.catalogView.nodes.pageCount.textContent = pageNum }
+    if (this.catalogView) { this.catalogView.nodes.pageCount.textContent = pageNum }
   }
 
   setCount(type: string, count: number, reachedLimit: boolean) {
     if (!this.catalogView) { return }
     const el = this.catalogView.nodes[`${type}Count`]
     el.textContent = count
-    return (reachedLimit ? $.addClass : $.rmClass)(el, 'warning')
+    if (reachedLimit) {
+      $.addClass(el, 'warning')
+    } else {
+      $.rmClass(el, 'warning')
+    }
   }
 
   setStatus(type: string, status: boolean) {
@@ -83,7 +84,7 @@ export default class Thread {
     if (!this.OP) { return }
     this.setIcon('Sticky', this.isSticky)
     this.setIcon('Closed', this.isClosed && !this.isArchived)
-    return this.setIcon('Archived', this.isArchived)
+    this.setIcon('Archived', this.isArchived)
   }
 
   setIcon(type: string, status: boolean) {
@@ -118,21 +119,25 @@ export default class Thread {
   }
 
   kill() {
-    return this.isDead = true
+    this.isDead = true
   }
 
   collect() {
     let n = 0
-    this.posts.forEach(function (post) {
+    this.posts.forEach(post => {
       if (post.clones.length) {
-        return n++
+        n++
       } else {
-        return post.collect()
+        post.collect()
       }
     })
     if (!n) {
       g.threads.rm(this.fullID)
-      return this.board.threads.rm(this)
+      this.board.threads.rm(this)
     }
   }
-}
+
+  toString() {
+    return this.ID
+  }
+}
\ No newline at end of file
diff --git a/src/platform/$.ts b/src/platform/$.ts
index 2f12001..7199e19 100644
--- a/src/platform/$.ts
+++ b/src/platform/$.ts
@@ -93,7 +93,6 @@ $.ajaxPage = function (url: string, options: AjaxPageOptions) {
   xhr.send(form)
   return xhr
 }
-$.cache = dict()
 
 $.ready = function (fc: () => void) {
   if (d.readyState !== 'loading') {
@@ -293,7 +292,7 @@ $.ajax = (function () {
 // With the `If-Modified-Since` header we only receive the HTTP headers and no body for 304 responses.
 // This saves a lot of bandwidth and CPU time for both the users and the servers.
 $.lastModified = dict()
-$.whenModified = function (url, bucket, cb, options) {
+$.whenModified = function (url, bucket, cb, options = {}) {
   let t: string
   const { timeout, ajax } = options
   const params = []
@@ -315,42 +314,43 @@ $.whenModified = function (url, bucket, cb, options) {
     headers
   })
   return r
-};
+}
 
-(function () {
+$.cache = function (url, cb, options = {}) {
   const reqs = dict()
-  $.cache = function (url, cb, options) {
-    let req
-    const { ajax } = options
-    if (req = reqs[url]) {
-      if (req.callbacks) {
-        req.callbacks.push(cb)
-      } else {
-        $.queueTask(() => cb.call(req, { isCached: true }))
-      }
-      return req
+  let req
+  const { ajax } = options
+  if (req = reqs[url]) {
+    if (req.callbacks) {
+      req.callbacks.push(cb)
+    } else {
+      $.queueTask(() => cb.call(req, { isCached: true }))
     }
-    const onloadend = function () {
-      if (!this.status) {
-        delete reqs[url]
-      }
-      for (cb of this.callbacks) {
-        (cb => $.queueTask(() => cb.call(this, { isCached: false })))(cb)
-      }
-      return delete this.callbacks
-    }
-    req = (ajax || $.ajax)(url, { onloadend })
-    req.callbacks = [cb]
-    return reqs[url] = req
+    return req
   }
-  return $.cleanCache = function (testf) {
-    for (const url in reqs) {
-      if (testf(url)) {
-        delete reqs[url]
-      }
+  const onloadend = function () {
+    if (!this.status) {
+      delete reqs[url]
+    }
+    for (cb of this.callbacks) {
+      (cb => $.queueTask(() => cb.call(this, { isCached: false })))(cb)
+    }
+    return delete this.callbacks
+  }
+  req = (ajax || $.ajax)(url, { onloadend })
+  req.callbacks = [cb]
+  return reqs[url] = req
+}
+
+$.cleanCache = function (testf) {
+  const reqs = dict()
+  for (const url in reqs) {
+    if (testf(url)) {
+      delete reqs[url]
     }
   }
-})()
+}
+
 
 $.cb = {
   checked() {
@@ -788,7 +788,7 @@ if (platform === 'crx') {
           c.error(err.message)
           setTimeout(setArea, MINUTE, area)
           timeout[area] = Date.now() + MINUTE
-          return cb?.(err)
+          return cb
         }
 
         delete timeout[area]
@@ -807,7 +807,7 @@ if (platform === 'crx') {
             return result
           })()))
         }
-        return cb?.()
+        return cb
       })
     }
 
@@ -831,7 +831,7 @@ if (platform === 'crx') {
           c.error(chrome.runtime.lastError.message)
         }
         if (err == null) { err = chrome.runtime.lastError }
-        if (!--count) { return cb?.(err) }
+        if (!--count) { return cb }
       }
       chrome.storage.local.clear(done)
       return chrome.storage.sync.clear(done)
@@ -862,7 +862,7 @@ if (platform === 'crx') {
 
     $.forceSync = function () { }
 
-    $.delete = function (keys, cb) {
+    $.delete = function (keys: string | string[], cb: Callbacks) {
       let key
       if (!(keys instanceof Array)) {
         keys = [keys]
@@ -877,7 +877,7 @@ if (platform === 'crx') {
         const items = dict()
         for (key of keys) { items[key] = undefined }
         $.syncChannel.postMessage(items)
-        return cb?.()
+        return cb
       })
     }
 
@@ -905,7 +905,7 @@ if (platform === 'crx') {
         return result
       })()).then(function () {
         $.syncChannel.postMessage(items)
-        return cb?.()
+        return cb
       })
     })
 
@@ -1044,7 +1044,7 @@ if (platform === 'crx') {
           const value = items[key]
           $.setValue(g.NAMESPACE + key, JSON.stringify(value), cb)
         }
-        return cb?.()
+        return cb
       })
     })
 
@@ -1056,7 +1056,7 @@ if (platform === 'crx') {
       try {
         $.delete($.listValues().map(key => key.replace(g.NAMESPACE, '')), cb)
       } catch (error) { }
-      return cb?.()
+      return cb
     }
   }
 }