Yet another reason why the forums desperately need the option to delete individual posts. I really don't see why Khan is so adamant against this; it would allow us to greatly reduce the spam content of forums without having to delete entire threads or lock them prematurely.
Well, the last time a controversial topic was posted, rather than deleting a select few posts, the entire thing was scrapped.. At least the other way those players could simply re-post their comments. :P Bit easier that way than it would be to lose the entire thread.
Besides, in theory the only people who should have mod access to forums should be those trusted not to abuse it in the first place. And if they do, remove that access.