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Seeing libs seethe about “too many tankies” is really funny.
(lemmygrad.ml)
Talk about whatever, respecting the rules established by Lemmygrad. Failing to comply with the rules will grant you a few warnings, insisting on breaking them will grant you a beautiful shiny banwall.
A community for comrades to chat and talk about whatever doesn't fit other communities
That's true, the Red Scare has had a lasting impact on American culture, and that impact can still be seen in vocabulary today.
There is certainly a racial aspect to it, some of the most dehumanizing things I've ever read were about China and Communism specifically, but I don't think that precludes legitimate criticisms of authoritarianism.
The inconsistency of even using the term makes it more or less useless for categorizing anything meaningfully. In practice, it has become an aimless pejorative that seems to have more utility as an anarchist dog whistle for identifying each other than having anything meaningful to say about anything else.