No, it isn't useless -- thanks to the 50 post requirement, we were able to keep the spam completely off of the rest of the forums last night in spite of the spammers hitting particularly hard. Since we can't be on 24/7, there will be times (like this morning) when the spam builds up a bit, but as soon as one of us is able to, we delete it and ban the spammer. It's now all cleaned up.