[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.
Threads in the user page seem cool.
I like anonymous comment voting.
I don't see any need to force 'make my votes public'
Downvotes should definitely not require explanations. Anyone with time for that should be doing something more important.
I strongly dislike anonymous voting, because this is a different context than Reddit - a rationalist ought to be prepared to defend their judgments. Similar reason why I don't like drive-by downvotes.