I don't even remember what he said, all i remember was a bunch of people got mad.
One dude was all like "do overgrowth" and somebody else said that TB doesn't take requests. Some other guy got all in some kind of tirade over how TB should take criticism and do what the viewers want at which point TB went full on "You're one fish in a big ocean" and all that. But yeah, he had a point, his comment was reasonable, if a bit harsh, and TB does care about the content he puts out. When he puts out a video that has a flaw he admits it, and he bashes a bit on himself for it because of it, because he cares.
I think it was some guys raging because he liked a Retsupurae video so he basically called his fans idiots.
Might've been this maybe? Dunno.