Because he's a comedian on one of the biggest comedy shows in history with several comedy specials, including an international tour. And because he's amassed a $13 million dollar net worth from the field of comedy, which leads me to believe he knows more about it than you.
@WorldofWarcraft
Can you explain what exactly he said that makes you think he's a piece of shit? He basically just said he's on to newer comedy because the stuff he used to talk about makes him cringe like insulting fat people and degrading women.