Userscripts.org

Shows deleted posts on MetaFilter. This script is known to work in Firefox/Greasemonkey and Google Chrome.

Navigate users' comments in Metafilter threads. Highlights comments by you and the original poster, and Metatalk comments by the admins.

Highlights multifavorited comments with bars whose width indicates the number of favorites; cannibalized from flatluigi's script

Adds "quote" links to Metafilter comments.

Tracks your last-read comment in threads, and allows you to jump back to it easily. This script is known to work with Firefox/Greasemonkey, Opera, Chrome, and Safari.

Hover over favorites count in MetaFilter comments to see which users favorited the comment.

Marks contributions from all librarians on MetaFilter.

Replaces the linked comment triangle pointer with a hedgehog.

A stripped-down, kill-file filter for MetaFilter site, including Recent Activity, without extra bells and whistles

Highlights posts with lots of comments

Hides comments and lines in Metafilter comments that consist of nothing but dots, periods, .s

Mark contact contributions on Metafilter

Numbers comments - handy in longboat threads.

Unicorn and narwhal buttons plus laser kitty on deleted posts

Adds your personal notes to a metafilter user profile

Only show highly favorited posts in a discussion thread. Helps you see just the good content in a long thread.

MetaFilter readers: Apply custom display styles to individual posts; tag posts with single- or multiple-word tags; highlight in different colors, all based on trigger words or patterns you select. (You can delete users or topics too). Major upgrade

changes background color of links to warn if video, pdf, ...

MetaFilter readers, would you rather see text-only posts linking to images or would you rather see the images within the post itself? Mondo Image allows users to automatically display inline images from text links with custom filtering and security.

Turns the submit button into a unicorn and the preview button into a narwhal (100 px version)

Adds "why?" links to old stuff in Recent Favorites that were newly favorited. Links to a search for the URL, which will hopefully show you a link from another comment.

Tells you how long until you can post next on Metafilter

Fixes Your Colour!

Annotate MetaFilter user-links everywhere with an indication of user-number.

Inserts the poster name before the comment

Remove un-useful sections from Metafilter

Adds buttons to aid in replying to comments

When you click on the tick/check next to a question, jump to the first 'best answer'.

Removes images in Metafilter comments

Gets rid of caret wikipedia links with arbitrary text