1. you should be able to quote the original poster too. cuz a lot of times a thread reaches several pages, noone remembers the original post and thus noone can understand when your relating to that.
maybe there could be a small sign "OP" or whatever in the quote area.
2. the mythreads-thing should be somehow pimped. first, you should be able to delete a few thread-watches without reloading the whole page. mabye some checkboxes, if you wanna have this thread in there and delete all threads after refreshing the page that arent checked.
3. i forgot my other points, so i will go for a epic shot: a "hall of thread". something that people can vote every month or so what was THA THREDDD of tha week or whatever. or having a personal area where you can store links to your favourite threads that arent monitored in "my threads" since noone posts in them anymore
thx alot, i friggin love this site, spend wayy too much time on here, but i guess its worthy