Bug report: In order to include a < or > sign in your post, you have to write < or >. This is fine (although a bit cumbersome), but when you later want to edit the comment, instead of placing < in the text box, < shows up instead, so that every time you want to edit the comment, you have to change every < to <. (The same thing occurs with >, too.)
I'm thinking this problem would be easy to fix, but I'm also curious: why can't we just write e.g. < and have it be converted to < at post-time? Of course, it would still need to be converted back at edit time, but I think it would make posting code or html snippets much simpler.
Ironically, I just edited this post for about the 3rd time.