I'd be surprised if that were a priority. There was one on the previous A2k for a bit, but it never worked well.
I think an easy way to do it for people who want to chat might be to co-ordinate chat programs, and send their username to people they want to chat with, or just put it down on a thread here.
That way, if you are online, you can chat with folk.
We used to do it a lot back in the day.