People have been out for him since the WoW drama where he as a self proclaimed genius and WoW god did everything wrong and left his mates out to die.
They dug into him and found that he's a master at bullshitting and pretending to find solutions to puzzles, that he obviously did google.
He might be a furry and also changes his voice to sound more masculine. He claimed to have received tens of thousands of death threats after the wow drama, which is highly unlikely.
He never admit fault but always doubles down.
All of that combined brought out the biggest of hate boners in people.
It's definitely easy and justified to dislike him, but he's not Hitler or something. He's just unlikable for bullshitting all day, but doesn’t deserve real hate.
People don't do themselves a favour by having such a low bar for literally hating someone. They will just get controlled by their hate.