Thank you for your suggestion. I'll give it a try.
As for the "stupid", I already called it before "idiot"

. But is a special case. We don't want lots of users. In real, even with Facebook, if someone register and we don't know him/her, we'll ban him.
It will be the official site of the Municipality in our town (~10.000 citizens) and our Mayor wants a clean discussions for social and anyother type of problems in our area.
Thank you again.