You all know how when you get a new message, red text appears in the chat box telling you so? Well, I think it would be great if we could be informed of replies to one of our threads in the same way. Who else agrees?
If you add a thread as one of your favorites (by clicking on the Favorite link at the top) you can go to the Favorites tab on your profile and when a new comment has been made on the thread, it will inform you of such.