He has created and curated an amazing thing. Kudos to him. Few people have the dedication he shows. I respect his achievements immensely. He's in the top 5 contributors to modern computing in my books.
That doesn't make it respectable to be an asshole though. The world has enough assholes. Being the smartest asshole still makes you an asshole.
Maybe he couldn't have done it any other way. Maybe he could have. Don't think we'll ever know. I still wouldn't hire him, and there's no risk he would have ever been looking to work for me anyways.