Look, if he's allowed to continue his nonsense and the Mods won't stop his monkeyshines, here's a plan.
We all spam him via private messages and the Email option. Spam the hoople with dating sites, gay and hetero.
Wanna carry it a step further and get your point across? Send him porn sites of whatever description.
We did this once on an antique car forum to some annoying commission spammer, it worked.....