CancellerBot

I wish that I had created this bot, CancellerBot.

Canceller Bot is a Twitter bot that automatically generates an image in which a “no” or “strikethrough” symbol is applied over a profile picture of a Twitter user, implying that the person has been cancelled. Created in September 2020, the bot achieved popularity in January 2021.
History

On September 7th, 2020, French developer @ohne_sonne, inspired by Twitter user @goelisette, launched Canceller Bot (CancellerBot) on Twitter. [1] The account, a joke bot, applies a crossed-out circle sign to a Twitter user’s profile picture, “cancelling” them.

On the same day, @ohne_sonne tested the bot on @goelisette, with the bot posting its first tweet[2] (shown below).