It would be nice to be able to revoke a "Thanks" for what ever reason. Sometimes we wanted to click "quote" but hit thanks instead. other times people may prove to be not so deserving of a thnaks given in hindsight. Just a thought.
It would also be nice if we could delete (totally) posts from certain threads so that they dont keep popping up in the "new replies to your posts" section all the time. Case in point i posted on a BST thread that i see pop up daily and i would like to be able to stop that, turn it off, or delete the comment from the thread so that it leaves me alone.