We show 82 registered members, users, whatever. I don't think that is enough to form critical mass and get things rolling.
I do know, from looking at past exchanges, that you will throw in with questions or comments at some point in a discussion if it is interested enough to get you to read it, or maybe just present so that you can read it.
I am thinking that if we ever could hit the critical mass, there would be some kind of new posting constantly, and there would usually be something every day or three that would interest you enough to make a comment. And not just you but other users also!
I think that is what we need, I just don't know how to make it happen!