let him post a link to his variant of the game. If people want to play it go ahead. It looks like its pretty well done. It will keep him from spamming the rest of the forum. I don’t see a problem with him posting a link to his game. yes I saw all his stupid posts on kickstarter, but if you take in isolation, that he has a link to his variant, I think that is ok.
I think by constantly banning him your just making the situation worse. He clear has some anger issues to deal with. That being said he did work hard on his variant, so you might as well leave a link up so people can get to it. you might want to edit the first post and put the link there so people can find it.
Then sticky this thread to the top and call it ‘Metal Gear Solid Variant’. This way we can direct people who want to play his variant to his forums.
I dont see this as ‘feeding the troll’, I think by ignoring his variant, it feeds him because it makes him angry.
sometimes its best to be the reasonable adult in a situation like this to defuse it. I think stickying 1 thread and calling it a variant with a link to the variant is a reasonable accomodation. It also shows that we are the grown ups in this situation.