I do think that, the mass posting of images aside, he didn't especially violate any rules. I think it started with
@russident egging him on. I wasn't following along much.
I know myself on other forums, posting viewpoints can be a frustrating process when people tend to overlook your ranting as fanboy shite, and then act like you do so because they assume you have beef with everyone who says otherwise.
There's also nothing wrong with liking a game in a series more than others, even if his opinion is a very unpopular one. Very unpopular. But all the same, I think RE6 was his earliest foray into the franchise, so it's like your first baby, I guess, in that you feel a sense of attachment to it because that's your earliest memory with it.
Me personally, I don't like or hate RE6. I'm not overly keen on RE4 or 5, as I prefer the more scary, survival horror based ones. So people could be gatekeepers and say that all the action ones are to be rightfully labelled as fake horror games. As they are mostly action oriented with horror being more of a secondary, more so loose genre. But that's just an obvious observation that many people point out...