I also check in once in a while. Though there are only 2 or 3 members that I know who are there regularly. Most of the time it's empty.
I like the idea. I think once in a while instead of doing "Ask JTF" Chaim should do a live chat. The problem is that you can't have people posting at the same time so it would need to be controlled and organized in some way which may be difficult. I think the chat system would have to be modified.