It’s a metaphor (ironically originating _on_ Twitter, not _about_ Twitter, pre-Musk); essentially, once you allow Nazis in a bar, they metastasize, and pretty soon you’re a Nazi bar. It’s perfectly applicable to the current state of twitter.
what metaphor was it called back when they allowed far-left hate speech but censored, shadow-banned or otherwise slowed stories that their secret thought-control departments didn't like? what would you call that?
Twitter already contained a lot of hateful speech before Elon acquired it.
Those tweets would typically be demoted instead of promoted.
I absolutely agree, a dead 1920's German nationalist movement is exactly why we shouldn't allow free speech online.