I was thinking that if you were able to blacklist certain words from forum subjects (not the message) that you could blacklist url's completely, nobody makes threads using a url as the subject except the advert bots.
Would reduce the botspam significantly, obviously this would not eliminate it due to the fact some of the bots just start their message in the subject rather than the actual message. Probably because the person who coded it has about as smart as a lobotomized sponge.
Yes, thank you for your time zarpers and friendly playaz