I like Dunkey.
I can't defend that he got banned, that's what happens when you break the Summoner's Code. But I loved his League videos, and I'm sad he's quitting LoL.
This game can be incredibly frustrating, and anyone who can't understand that sometimes people get angry is blind. Of course, that doesn't excuse toxic chat, but at least I understand why people do it. Also for someone who has been with LoL so long, it isn't anything like the game he started playing 4 years ago. So I understand why this game isn't fun for Dunkey anymore.
In that regard, I understand and respect his decision to quit LoL, and I'll miss his videos.