diff --git a/builds/appchan-x.user.js b/builds/appchan-x.user.js
index fa343a89d..24c2139b5 100644
--- a/builds/appchan-x.user.js
+++ b/builds/appchan-x.user.js
@@ -5937,7 +5937,7 @@
           }
           filter = filter.replace(regexp[0], '');
           boards = ((_ref1 = filter.match(/boards:([^;]+)/)) != null ? _ref1[1].toLowerCase() : void 0) || 'global';
-          if (boards !== 'global' && (_ref2 = !g.BOARD.ID, __indexOf.call(boards.split(','), _ref2) >= 0)) {
+          if (boards !== 'global' && (_ref2 = g.BOARD.ID, __indexOf.call(boards.split(','), _ref2) < 0)) {
             continue;
           }
           if (key === 'uniqueID' || key === 'MD5') {
@@ -8425,7 +8425,7 @@
         _ref = match, match = _ref[0], type = _ref[1], val = _ref[2];
         item = item.replace(match, '');
         boards = ((_ref1 = item.match(/boards:([^;]+)/i)) != null ? _ref1[1].toLowerCase() : void 0) || 'global';
-        if (boards !== 'global' && (_ref2 = !g.BOARD.ID, __indexOf.call(boards.split(','), _ref2) >= 0)) {
+        if (boards !== 'global' && (_ref2 = g.BOARD.ID, __indexOf.call(boards.split(','), _ref2) < 0)) {
           return;
         }
         if (type === 'password') {
@@ -8772,7 +8772,7 @@
         QR.nodes.filename.focus();
         return;
       }
-      if (e.target.nodeName === 'INPUT' || (e.keyCode && ((_ref = !e.keyCode) === 32 || _ref === 13)) || e.ctrlKey) {
+      if (e.target.nodeName === 'INPUT' || (e.keyCode && ((_ref = e.keyCode) !== 32 && _ref !== 13)) || e.ctrlKey) {
         return;
       }
       e.preventDefault();
@@ -12298,7 +12298,7 @@
       file: {}
     },
     init: function() {
-      var archive, boardID, boards, data, id, name, type, _i, _len, _ref, _ref1, _ref2, _ref3;
+      var archive, boardID, boards, data, id, name, type, _i, _len, _ref, _ref1, _ref2;
 
       _ref = Conf['selectedArchives'];
       for (boardID in _ref) {
@@ -12326,7 +12326,7 @@
           if (!(boardID in Redirect.data.post || archive.software !== 'foolfuuka')) {
             Redirect.data.post[boardID] = archive;
           }
-          if (!(boardID in Redirect.data.file || (_ref3 = !boardID, __indexOf.call(archive.files, _ref3) >= 0))) {
+          if (!(boardID in Redirect.data.file || __indexOf.call(archive.files, boardID) < 0)) {
             Redirect.data.file[boardID] = archive;
           }
         }
@@ -14161,7 +14161,7 @@
       _ref = $$("#board-list a:not(.catalog), #boardNavDesktopFoot a");
       for (_i = 0, _len = _ref.length; _i < _len; _i++) {
         a = _ref[_i];
-        if (((_ref1 = !a.hostname) === 'boards.4chan.org' || _ref1 === 'catalog.neet.tv' || _ref1 === '4index.gropes.us') || !(board = a.pathname.split('/')[1]) || (board === 'f' || board === 'status' || board === '4chan')) {
+        if (((_ref1 = a.hostname) !== 'boards.4chan.org' && _ref1 !== 'catalog.neet.tv' && _ref1 !== '4index.gropes.us') || !(board = a.pathname.split('/')[1]) || (board === 'f' || board === 'status' || board === '4chan')) {
           continue;
         }
         a.href = generateURL(board);
diff --git a/builds/crx/script.js b/builds/crx/script.js
index 587bfa53e..71a9691ae 100644
--- a/builds/crx/script.js
+++ b/builds/crx/script.js
@@ -5941,7 +5941,7 @@
           }
           filter = filter.replace(regexp[0], '');
           boards = ((_ref1 = filter.match(/boards:([^;]+)/)) != null ? _ref1[1].toLowerCase() : void 0) || 'global';
-          if (boards !== 'global' && (_ref2 = !g.BOARD.ID, __indexOf.call(boards.split(','), _ref2) >= 0)) {
+          if (boards !== 'global' && (_ref2 = g.BOARD.ID, __indexOf.call(boards.split(','), _ref2) < 0)) {
             continue;
           }
           if (key === 'uniqueID' || key === 'MD5') {
@@ -8434,7 +8434,7 @@
         _ref = match, match = _ref[0], type = _ref[1], val = _ref[2];
         item = item.replace(match, '');
         boards = ((_ref1 = item.match(/boards:([^;]+)/i)) != null ? _ref1[1].toLowerCase() : void 0) || 'global';
-        if (boards !== 'global' && (_ref2 = !g.BOARD.ID, __indexOf.call(boards.split(','), _ref2) >= 0)) {
+        if (boards !== 'global' && (_ref2 = g.BOARD.ID, __indexOf.call(boards.split(','), _ref2) < 0)) {
           return;
         }
         if (type === 'password') {
@@ -8781,7 +8781,7 @@
         QR.nodes.filename.focus();
         return;
       }
-      if (e.target.nodeName === 'INPUT' || (e.keyCode && ((_ref = !e.keyCode) === 32 || _ref === 13)) || e.ctrlKey) {
+      if (e.target.nodeName === 'INPUT' || (e.keyCode && ((_ref = e.keyCode) !== 32 && _ref !== 13)) || e.ctrlKey) {
         return;
       }
       e.preventDefault();
@@ -12288,7 +12288,7 @@
       file: {}
     },
     init: function() {
-      var archive, boardID, boards, data, id, name, type, _i, _len, _ref, _ref1, _ref2, _ref3;
+      var archive, boardID, boards, data, id, name, type, _i, _len, _ref, _ref1, _ref2;
 
       _ref = Conf['selectedArchives'];
       for (boardID in _ref) {
@@ -12316,7 +12316,7 @@
           if (!(boardID in Redirect.data.post || archive.software !== 'foolfuuka')) {
             Redirect.data.post[boardID] = archive;
           }
-          if (!(boardID in Redirect.data.file || (_ref3 = !boardID, __indexOf.call(archive.files, _ref3) >= 0))) {
+          if (!(boardID in Redirect.data.file || __indexOf.call(archive.files, boardID) < 0)) {
             Redirect.data.file[boardID] = archive;
           }
         }
@@ -14151,7 +14151,7 @@
       _ref = $$("#board-list a:not(.catalog), #boardNavDesktopFoot a");
       for (_i = 0, _len = _ref.length; _i < _len; _i++) {
         a = _ref[_i];
-        if (((_ref1 = !a.hostname) === 'boards.4chan.org' || _ref1 === 'catalog.neet.tv' || _ref1 === '4index.gropes.us') || !(board = a.pathname.split('/')[1]) || (board === 'f' || board === 'status' || board === '4chan')) {
+        if (((_ref1 = a.hostname) !== 'boards.4chan.org' && _ref1 !== 'catalog.neet.tv' && _ref1 !== '4index.gropes.us') || !(board = a.pathname.split('/')[1]) || (board === 'f' || board === 'status' || board === '4chan')) {
           continue;
         }
         a.href = generateURL(board);
diff --git a/src/Archive/Redirect.coffee b/src/Archive/Redirect.coffee
index b4aa7137b..b6451c6fa 100755
--- a/src/Archive/Redirect.coffee
+++ b/src/Archive/Redirect.coffee
@@ -17,7 +17,7 @@ Redirect =
           Redirect.data.thread[boardID] = archive
         unless boardID of Redirect.data.post or archive.software isnt 'foolfuuka'
           Redirect.data.post[boardID] = archive
-        unless boardID of Redirect.data.file or not boardID in archive.files
+        unless boardID of Redirect.data.file or boardID not in archive.files
           Redirect.data.file[boardID] = archive
     return
 
diff --git a/src/Filtering/Filter.coffee b/src/Filtering/Filter.coffee
index e6a8bd27f..934a5fa5f 100755
--- a/src/Filtering/Filter.coffee
+++ b/src/Filtering/Filter.coffee
@@ -21,7 +21,7 @@ Filter =
         # and it's not specifically applicable to the current board.
         # Defaults to global.
         boards = filter.match(/boards:([^;]+)/)?[1].toLowerCase() or 'global'
-        if boards isnt 'global' and not g.BOARD.ID in boards.split ','
+        if boards isnt 'global' and g.BOARD.ID not in boards.split ','
           continue
 
         if key in ['uniqueID', 'MD5']
diff --git a/src/Miscellaneous/CatalogLinks.coffee b/src/Miscellaneous/CatalogLinks.coffee
index 263d4fc06..ba5af43e4 100755
--- a/src/Miscellaneous/CatalogLinks.coffee
+++ b/src/Miscellaneous/CatalogLinks.coffee
@@ -34,7 +34,7 @@ CatalogLinks =
       (board) -> a.href = "/#{board}/#{path}"
 
     for a in $$ """#board-list a:not(.catalog), #boardNavDesktopFoot a""" 
-      continue if not a.hostname in ['boards.4chan.org', 'catalog.neet.tv', '4index.gropes.us'] or
+      continue if a.hostname not in ['boards.4chan.org', 'catalog.neet.tv', '4index.gropes.us'] or
       !(board = a.pathname.split('/')[1]) or
       board in ['f', 'status', '4chan']
 
diff --git a/src/Posting/QuickReply.coffee b/src/Posting/QuickReply.coffee
index 1a5f0da96..e7a7aced0 100644
--- a/src/Posting/QuickReply.coffee
+++ b/src/Posting/QuickReply.coffee
@@ -228,7 +228,7 @@ QR =
       item = item.replace match, ''
 
       boards = item.match(/boards:([^;]+)/i)?[1].toLowerCase() or 'global'
-      return if boards isnt 'global' and not g.BOARD.ID in boards.split ','
+      return if boards isnt 'global' and g.BOARD.ID not in boards.split ','
 
       if type is 'password'
         QR.persona.pwd = val
@@ -492,7 +492,7 @@ QR =
       $.addClass QR.nodes.filename, 'edit'
       QR.nodes.filename.focus()
       return
-    return if e.target.nodeName is 'INPUT' or (e.keyCode and not e.keyCode in [32, 13]) or e.ctrlKey
+    return if e.target.nodeName is 'INPUT' or (e.keyCode and e.keyCode not in [32, 13]) or e.ctrlKey
     e.preventDefault()
     QR.nodes.fileInput.click()