Not sure if this is the right place to post this, but I'd love to see the forum profiles expanded a bit on Word Press Support forums.
I'd be intrigued to see how many posts I've replied to and I think it would be interesting to offer some additional extras in each person's profile, such as your rss feed and some expanded stuff.
Also, private messages would be a nice touch, but obviously would need to be carefully looked after by Akismet to prevent irritating spam.
Just some thoughts.. not sure if they're all good or not ;)
Zhu8