[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.
You need to escape it to avoid its interpretation as a markup element.
Thanks. I suggest we add a link to the full comment formatting guide from the drop-down help that appears when you click on the "Help" link at the bottom of a comment box. I think most people probably assume that the drop-down help is all that's available.