From a 2p2 perspective there's not a lot that can be done.
We can IP ban whatever new IP he shows up on, but as everyone knows, it's really not that hard to circumvent an IP ban.
Alobar could post in the mod forum declaring him officially BOS again (up until now, the assumption has been that Alobar is sort of his official wrangler and other mods just let him do his thing as long as it was contained to OOT - one of the many reasons I will always
Alobar is he allowed me to have some fun with Nimanimanima as well) and basically ask any mod that frequents OOT to nuke him immediately on sight.
Frankly I sort of enjoy letting him rant for a while THEN nuking him, but ultimately Alobar is king when it comes to the fate of Nima. Or, perhaps more accurately, Nima is Alobar's bitch when it comes to 2p2.