His random crits video essay is easily the worst video he's ever made. The amount of brainwashing it did to the community is unbelievable.
That video is single-handedly responsible for the braindead "Random crits are fair and balanced" copypasta plus all of it's variants that you see everywhere in Casual today, the incessant sperging from post-JI players about random crits, and the "apologizing for getting a random crit" plus aforementioned "must get frustrated at random crit kill" mentalities.
Someone could unironically and should make a essay on Uncle Dane and his terrible influence on TF2, he's done so much damage to this game.