@heatherval, banning the IP of a single spambot isn't a solution... it's probably not a person, just multiple automated bots/scripts that target exploits in the forum software.
I doubt anyone here will take the journey back to bsdforums, we're all quite aware of how the admin abandoned the community, seems likely he would do it again.
What should be done is the forum should be taken down.. archived perhaps.. and the admin should recommend daemonforums.