Userscripts.org

Adds the national flag icons next to each username in the comment section of Youtube.

Allows Toggling of Youtube Comments

Reply Hunting Ability! Threaded blocked user post removal! Inline Fave/Unfave/Ignore/Unignore using Fark's official controls (w/color and comments)! Added thread-anchor-stay-in-page-and-jump-ability. Link submission form mods. Some profile things....

На Хабрахабре, дает возможность увидеть текст комментария, на какой отвечает данный комментарий

Makes Youtube's "Watch" page (video page) better, by putting the video description to the right of the video, and a couple other things.

This is Auto Like Facebook Modern Version. Just one click all status will like or unlike. Included Auto Confirm Facebook Friends or Unconfirm Facebook Friends, Expand Comments, etc. But Sorry for Like/Unlike Comments, it doesnt work anymore.

Replaces YouTube comments by quotes from Richard Feynman. Click quote to view original text. (Updated FeynTube script.)

soundcloud hide comments fixed

Marks Hacker News comments read/unread.

Displays Total Reactions per 100 views of the Youtube videos so that you can decide whether a video is worth watching before opening a new tab. ( By reactions I mean Likes&Favourites on Youtube and shares on Facebook & Twitter. )

Script to comment the Javadoc API documentation of methods.

Allows you to collapse and expand comments in a Hacker News thread

super fast comment expanding for LJ

Сворачиваем комментарии по оценке

Tweaks to Google+ (Google "Plus") - Toggle comments, image previews, mute button, favicon alerts, full width, fixed navigation, thumbnails only, etc.

Add a reply button to comments

Allows the user to choose whether to display official contri comments at voyeurweb.com

Replaces the linked comment triangle pointer with a hedgehog.

Turn off comments on SA news sites. Based on the BigotBlocker extension for Chrome.

Gives the ability to sort all comments on a Youtube video by highest rating on a page.

Filter/blacklist for comments on your dashboard/comments section; favourites for following; infinite scrolling.

Adds reply and reply-to-author buttons to Google+ comments

Remove Comments from Times Of India

Prevents YouTube's Character Counter from Becoming Active through the Tab Key

Simple script to format rlslog comments to show/hide comments/links according to configurable options.

Disable comments from YouTube per default, with an option to (temporarily) display them for a single video.

Displays full comments instead of a single line in Slashdot's RSS

Makes Habrahabr comments behave like Reddit's

Adds a download button to every player on SoundCloud.com while maintaining the original design and look. You need to right click and choose 'Save target as...'. It does not change original download links.

Selectively hide users who comment at Cat and Girl based on the name they post with.