Bill is very well aware of these problems, as he is the one who is actually causing them, for a good reason, and it's to keep his forum protective of spammers, but as far as detection goes, there is no such mod that can detect spam or not. Just be glad he has the whitelist function, or else you wouldnt be able to post at all anymore. The whitelists are refreshed so they can be somewhat unlimited to you, but it's just a nuisance that has to be dealt with. I don't mind whitelisting myself every other day, to be honest.