I honestly think driving and League of Legends brings this out of people for the same reason but I have no evidence.
There must be something about relying on the actions of strangers and participating in an activity with measurable and communal “right ways to do things” that brings out so much vitriol.
Perceived slights, overestimating one’s own ability, shared misfortune on mistakes, I could go on forever.
This shit is so stupid. It’s genuinely tragic that grown adults believe these things still.