Turns out I never finished my Thread Title magic...

because @MayhemYDG had already done it and done it better. So I
thought mine was working when it was just his... and then
realized when I didn't disconnect it and the index was getting a
title from a thread that it wasn't working and his was.

So let's just use his code.

builds/4chan-X.user.js

@@ -8641,6 +8641,9 @@
     },
     node: function() {
       return d.title = Get.threadExcerpt(this);
+    },
+    disconnect: function() {
+      return Thread.callbacks.disconnect('Thread Excerpt');
     }
   };
 
@@ -11860,7 +11863,7 @@
       g.BOARD.threads = {};
       return $.rmAll($('.board'));
     },
-    threadFeatures: [['Unread Count', Unread], ['Quote Threading', QuoteThreading], ['Thread Stats', ThreadStats], ['Thread Updater', ThreadUpdater], ['Thread Expansion', ExpandThread]],
+    threadFeatures: [['Thread Excerpt', ThreadExcerpt], ['Unread Count', Unread], ['Quote Threading', QuoteThreading], ['Thread Stats', ThreadStats], ['Thread Updater', ThreadUpdater], ['Thread Expansion', ExpandThread]],
     disconnect: function() {
       var err, errors, feature, features, name, _i, _len, _ref;
       features = g.VIEW === 'thread' ? Navigate.threadFeatures : [];
@@ -12012,6 +12015,7 @@
       if (this.hostname !== 'boards.4chan.org' || window.location.hostname === 'rs.4chan.org' || (e && (e.shiftKey || (e.type === 'click' && e.button !== 0)))) {
         return;
       }
+      $.addClass(Index.button, 'fa-spin');
       path = this.pathname.split('/');
       hash = this.hash;
       if (path[0] === '') {
@@ -12087,7 +12091,7 @@
       }
     },
     parse: function(data) {
-      var OP, board, comment, errors, makePost, obj, post, posts, subject, thread, threadRoot, title, _i, _len, _ref;
+      var OP, board, errors, makePost, obj, post, posts, thread, threadRoot, _i, _len;
       board = g.BOARD;
       Navigate.threadRoot = threadRoot = Build.thread(board, OP = data.shift(), true);
       thread = new Thread(OP.no, board);
@@ -12109,11 +12113,6 @@
         }
       };
       makePost($('.opContainer', threadRoot));
-      _ref = posts[0].info, subject = _ref.subject, comment = _ref.comment;
-      title = "/" + g.BOARD.ID + "/ - " + (subject || comment);
-      if (title.length > 100) {
-        title = title.slice(0, 100);
-      }
       for (_i = 0, _len = data.length; _i < _len; _i++) {
         obj = data[_i];
         post = Build.postFromObject(obj, board);

builds/crx/script.js

@@ -8624,6 +8624,9 @@
     },
     node: function() {
       return d.title = Get.threadExcerpt(this);
+    },
+    disconnect: function() {
+      return Thread.callbacks.disconnect('Thread Excerpt');
     }
   };
 
@@ -11849,7 +11852,7 @@
       g.BOARD.threads = {};
       return $.rmAll($('.board'));
     },
-    threadFeatures: [['Unread Count', Unread], ['Quote Threading', QuoteThreading], ['Thread Stats', ThreadStats], ['Thread Updater', ThreadUpdater], ['Thread Expansion', ExpandThread]],
+    threadFeatures: [['Thread Excerpt', ThreadExcerpt], ['Unread Count', Unread], ['Quote Threading', QuoteThreading], ['Thread Stats', ThreadStats], ['Thread Updater', ThreadUpdater], ['Thread Expansion', ExpandThread]],
     disconnect: function() {
       var err, errors, feature, features, name, _i, _len, _ref;
       features = g.VIEW === 'thread' ? Navigate.threadFeatures : [];
@@ -12001,6 +12004,7 @@
       if (this.hostname !== 'boards.4chan.org' || window.location.hostname === 'rs.4chan.org' || (e && (e.shiftKey || (e.type === 'click' && e.button !== 0)))) {
         return;
       }
+      $.addClass(Index.button, 'fa-spin');
       path = this.pathname.split('/');
       hash = this.hash;
       if (path[0] === '') {
@@ -12076,7 +12080,7 @@
       }
     },
     parse: function(data) {
-      var OP, board, comment, errors, makePost, obj, post, posts, subject, thread, threadRoot, title, _i, _len, _ref;
+      var OP, board, errors, makePost, obj, post, posts, thread, threadRoot, _i, _len;
       board = g.BOARD;
       Navigate.threadRoot = threadRoot = Build.thread(board, OP = data.shift(), true);
       thread = new Thread(OP.no, board);
@@ -12098,11 +12102,6 @@
         }
       };
       makePost($('.opContainer', threadRoot));
-      _ref = posts[0].info, subject = _ref.subject, comment = _ref.comment;
-      title = "/" + g.BOARD.ID + "/ - " + (subject || comment);
-      if (title.length > 100) {
-        title = title.slice(0, 100);
-      }
       for (_i = 0, _len = data.length; _i < _len; _i++) {
         obj = data[_i];
         post = Build.postFromObject(obj, board);

src/General/Navigate.coffee

@@ -35,6 +35,7 @@ Navigate =
     $.rmAll $ '.board'
 
   threadFeatures: [
+    ['Thread Excerpt',   ThreadExcerpt]
     ['Unread Count',     Unread]
     ['Quote Threading',  QuoteThreading]
     ['Thread Stats',     ThreadStats]
@@ -170,6 +171,8 @@ Navigate =
     return if @hostname isnt 'boards.4chan.org' or window.location.hostname is 'rs.4chan.org' or
       (e and (e.shiftKey or (e.type is 'click' and e.button isnt 0))) # Not simply a left click
 
+    $.addClass Index.button, 'fa-spin'
+
     path = @pathname.split '/'
     hash = @hash
     path.shift() if path[0] is ''
@@ -258,10 +261,6 @@ Navigate =
 
     makePost $('.opContainer', threadRoot)
 
-    {subject, comment} = posts[0].info
-    title = "/#{g.BOARD.ID}/ - #{subject or comment}"
-    title = title[...100] if title.length > 100
-
     for obj in data
       post = Build.postFromObject obj, board
       makePost post

src/Monitoring/ThreadExcerpt.coffee

@@ -5,5 +5,5 @@ ThreadExcerpt =
     Thread.callbacks.push
       name: 'Thread Excerpt'
       cb:   @node
-  node: ->
-    d.title = Get.threadExcerpt @
+  node: -> d.title = Get.threadExcerpt @
+  disconnect: -> Thread.callbacks.disconnect 'Thread Excerpt'

src/Quotelinks/Quotify.coffee

@@ -8,6 +8,7 @@ Quotify =
     Post.callbacks.push
       name: 'Resurrect Quotes'
       cb:   @node
+
   node: ->
     for deadlink in $$ '.deadlink', @nodes.comment
       if @isClone