Last time I was there was during a site outage, and you have to admit it was kind of weird. Three or four names lurking around waiting to downvote anyone who signed in, and nobody talking. Why would anyone want to be there?
There's a chat at http://able2know.org/chat that works fine (though it's a beta). It might be difficult to organize something like that unless they add a list of chatters online. I'm hoping for an IRC; they might eventually change something but there are a few people who use the beta chat.