I haven't looked super in depth, but...
-Sperged endlessly about how TF2 (the game he was most known for) was "dying" and how he hated it, alienating a good chunk of his fans
-Shilled relentlessly for Overwatch before and after launch
-Quickly realized he hates Overwatch, but is now paid to play it, so he can't back out
-Lashes out at any other TF2 YouTubers for even referencing his fans
-Has had a few breakdowns on stream
Like I said, he'd make for a good careercow, but he doesn't do anything frequently enough to sustain a thread.