We don’t check every account! Usually I only check if someone has some suspicious behavior…if I think that they might be a returning troll, for instance. Several trolls have certain patterns that they always use, hot button topics, etc. I’m not going to go into specifics. I try to look over the new registrations and weed out the ones that look like trouble. For instance, if someone chooses a name with “shit” or “fuck” in the userid, I will not allow registration. I don’t write to the offender and tell them why registration didn’t go through, either. I figure that the person is trying to be as offensive as possible, and I’m not playing along.
Oh, and just for general information…if someone posts a commercial link, or a “Please vote for my artwork in this contest” link, or anything like that in one of his/her first posts…that person gets banned, and I generally won’t lift the ban.