Bitcointalk has no authority to license anyone for anything, and I'm sure if the government found out about anything like that happening, they'd take a very keen interest in it.
I don't think he meant a license as the literal sense. Probably, just whitelisting certain members to be able to run campaigns rather than allowing everyone, and anyone like it is right now. theymos would be perfectly in his rights to limit who can, and can't run campaigns on the forum. Although, I doubt that it will happen.