As to meeting - one thing the various religious meetings aren't, is one big argument. If you're going to have rationalists meet to develop a community, there ought to be a driving purpose, something to achieve with the time besides disagree with each other. Perhaps a "virtual dojo"? Someone has to start building the "martial art", it isn't going to invent itself.

If you're going to do that, though, charge money. You said it yourself elsewhere: if you aren't prepared to pay for it, you don't care.