We had a spammer this afternoon. Seemed like a person and not a bot. He/she created usernames as fast as I could delete them and refreshed IPs too. Annoying. Probably put up 100-200 posts in about 20 minutes, all linking to porn sites. Luckily, I saw him within about 5 minutes of his getting started.
I am not up to date on how to stop spammers, so for now until intercst checks in here, I have made it to where you can only post once per every 3 minutes. Shouldn't affect most of you, but will slow him down if he comes back.