I feel we aren't using it to it's full potential.
While I know IRC as a whole is a relatively simplistic form of communication, we could, say, I don't know, use it. I often frequent it, and I find very few people online; with the regulars countable on a single hand. I began to build my IRC Bot as an aid to this, with one of the main features being the ability to pull a recent change from the Wiki.
Why do you all think the IRC channel is so underused? ~ Someone
(PS: I'm British, so if I am missing people simply beacuse of timezones then please tell me.)