God, I know it isn't. But I just couldn't help it. He should not leave the forum to bleed only because a few positive users might get a negative effect from this. Those legitimate users would probably find their way to the other side, but this whole lot of spammers would die inside that circle, and that would probably bring some positive energy to the forum.
Many legitimate users have "left" this forum in terms of hacked accounts, by scamming someone or simply went AWOL. What is left must be preserved and I believe continuous scrutiny of post quality of such members is necessary to reduce spam and increase quality discussions.
But what is the role of the campaign manager then? If they accept such users in campaigns then nothing can be done to stop them from shitposting. Hence both the manager and the mods of the forum need to monitor them for such shitposting spree.
Literally speaking once they spam - they will eventually get banned and then make another account - by whatever method and start a new journey on bitcointalk. That is where merit stops them from ranking up and the same thing repeats. Ultimately they will get tired and frustrated and then leave the forum.