I'm using this 'clickhappier-archive' account to post archival copies of old MTurk-related userscripts from userscripts-mirror.org (which is itself an archive of the defunct site userscripts.org) and forum posts, which their authors or others haven't re-posted on Greasyfork yet. Some of these may no longer be all that interesting as more recent scripts may do what they do better, but some remain very useful.
Last update Apr 25, 2013 — Installed 39,926 times.
Note from Clickhappier: This is a generally useful script, not just for MTurk workers. There are a bunch of other scripts that have been posted on Greasyfork that claim to do similar stripping of Google search results links, but this is the one I've been happily using for months, and it didn't appear to have been posted here yet.