[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.
http://en.wikipedia.org/wiki/Martingale_(betting_system%29
You can use %29 ASCII code for the closing bracket instead of the bracket itself.
http://en.wikipedia.org/wiki/Martingale_(betting_system\))
You can also escape special symbols with a backslash \, so you may replace the ) with \). This is also useful for preventing the markup from, for example *italicizing* the words enclosed in * (source code: \\italicizing\*).
That doesn't seem to work.
EDIT: Ah, I see - the links deliberately have the encoded bits spelled out in them. I had thought it was unintentional.