Well, there are dedicated spam threads in the Frontroom - nevertheless spammers still seem to feel the urge not only to start additional spam threads but also to spam threads that were started for another purpose.
Exactly, so if we gave them their own forum it would be more-or-less fine.

It seems to me that the hallmark of a "real" spammer is not to limit spamming to the places were it would be acceptable.
Exactly right, no arguments from me there...