Quoted:
Is it possible to subscribe to a thread and set it to notify you when a post you or someone else made is quoted?  Kind of subscribing to a post within a thread.

Sometimes I'll post in those multi-page monstrosities and then give up checking the thread.  It would be nice to be notified when someone quoted your post so you can respond, etc.  It would also be nice to know that if you quoted someone else's post with a question or something, then they will probably see it.