We've had chat on and off in the past. There are a number of reasons why it has fallen into disrepute/disuse - many didn't use it and moderating it was at best challenging. The biggest issue though is the disproportionate adverse impact on the server.
I'm not saying we won't do it again, but we don't have any plans in the short term to do so.
Have you seen this? http://forum.simplydiscus.com/showth...n-facebook-now