I used to be a huge fan of his, even being a member of the old forums he used to have. Over time he started to appeal towards a younger generation than previously, his jokes used to be pointed towards a more mature audience. He suddenly started appealing towards more younger people, mostly around preteen age or early teens, and thats when I started to find him annoying.
No, I don't think he's a bad person, he could give a bit more towards charities than he currently does (Look at mark for example, he spends almost one day of a month fully donating towards charities because he wants to make good use of his fame and set everyone on one, positive, goal.).
That and his editing style has gotten a little more towards kids recently as well.
Basically, I used to like him, but I don't anymore cause now he's just shouting 4/20blazit and curse words at a bunch of preteen boys who just learned the words he's spewing and think its funny :\