[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.
Think of 'drafts for username' as a private site where you can post articles - i.e. a 'holding area' - until you think they are ready to be viewed in Less Wrong.
An article can only exist in one 'area' at a time, either drafts or lesswrong.
If you delete an article, it will remain deleted regardless of which site you post it to. (I'm unsure if you can undelete an articles, but its status would remain deleted if you moved it).
Also, when you are logged in, you should be able to edit posts via their 'edit' link on the bottom right hand side of the article.
If you've ever used reddit, think of it as a private subreddit (as that's what it is).