I will say, unless I'm missing something, it is very strange for the mods to ban superduper when he doesn't actually break their TOS in chats and AFAIK doesn't actually do anything to contact the talents or mods right? Typically, unless you have IP or Email information (which they don't....probably) you don't ban a user for something they did on another venue until they say themselves "I'm stinky the troll hah hah hah" on the venue you control. If anything you might ask the user to change their name if it was annoying or problematic.
Edit: Also since Rie directly acknowledged that he's not an anti on stream.... Idduno it's seems weird they wouldn't unban him or at last not be proactively banning him.