Don't think there would be any banning, probably more of a warning unless you did a bunch of bad stuff in the past. The commercial ROM thing is for stuff like the Super Fighter Team games that are still being manufactured or are being used in a commercial manner (same for stuff like the Sivak games.) If this were to be taken down, it's to keep people out of our hair and not upset any important figure in unlicensed gaming. I think it'd be fine, but a staff member would have to make the ultimate decision. If it's the guy's own dump of the game, then there's no problem here.