"Dogpile culture" is a more appropriate term for the very real tendency on Twitter (and Tumblr before it) to amplify any perceived misdeed through a game of digital telephone until you can no longer tell whether someone is truly problematic or not and all you can do is pick a side and go with the crowd.

But the modern term "cancel culture" has been so bastardized, appropriated by right-wing trolls, and conflated with basic accountability that it doesn't mean anything anymore, and it's completely pointless to talk about "cancel culture."