I mean he'll have trouble hiring people to work for him. I'd certainly think twice (and this is not an entirely casual statement since I'm an engineer and a startup guy) - not because of the allegations, but because the result of a careful investigation was that he made it an unpleasant place to work for some of his employees by being confrontational, disregarding complaints, and being insensitive to something that wasn't a problem for him personally. I do not want to work in a place like that, and I'd be worried that he'd do it again.

It won't stop everybody from working for him. He'll still get plenty of graduate attention. But putting together a good startup team is hard, and this kind of verdict might make it impossible.