Well, I was talking more 1 x 1. It's funner without the character sheets to me. The worst that can happen is I find someone new later.
I believe the GM should see them and be smart enough to keep the characters in check. But I won't be reading everyone's sheets. I'd rather just go for it in RP.

I had an RP where character sheets were required, but only I would see them. The only thing I would post on the thread was the main information; Name, age, image. 
Then I'd make the people actually meet them to learn more. No one ever complained because I was a close-watch on what I allowed and didn't.