There is now a new wiki.
All the content from the wikia wiki has been migrated to the new wiki.
However the users can't be exported and hence weren't migrated. You may create an account at the new wiki with the same username as the wikia wiki and then you will have the same user page and all your contributions will match on your username.
For those that have been looking carefully you will have noticed the link to the new wiki next to the about link in the nav bar.
Enjoy :)
For those that have been keeping an eye on the new wiki you may have noticed a couple of things change recently.
First anonymous editing has been disabled, so you have to login to the wiki in order to contribute.
Second the URLs are in wikipedia style format, so articles can be accessed like http://wiki.lesswrong.com/wiki/Utilon instead of http://wiki.lesswrong.com/mediawiki/index.php?title=Utilon (the second form still works of course)
[Edit: Issues, Bugs, and Requested Features should be tracked at Google Code, not here -- matt, 2010-04-23]
Less Wrong is still under construction. Please post any bugs or issues with Less Wrong to this thread. Try to keep each comment thread a clean discussion of each bug or issue.
Requested features... sure, go ahead, but bear in mind we may not be able to implement for a while.