I don't see anything in his behaviour which would justify your "optimistic" outlook. Sure it won't degenerate in one of those gutter platforms right away but I doubt he'll be able to maintain an acceptable level as long as he's directly involved. He just doesn't make the the impression of an adult person.
imho this may end up being really good for the rest of the internet if it drives away interesting and important people to other platforms.
> scapegoat