I would love it. It wouldn't help much with SA though, I think. It might be difficult to build up your self-esteem among people who have low self-esteem as well. It would be useful to make us feel less alone though, yes, and find "nice" friends, because most people here are very sensitive.
If we could all start to hang out together often in real life and decide we would try to support each other, and if we became a group of good friends, then yeah, I believe that would definitely cure SA. The thing is, it's impossible, not even just a party, since we all live so far away from each other. We would need to live around the same city.