You’re reaching for some “fascists always pretend to be joking until they’re not” thing, but the Hexbear community originally formed around a deeply irony poisoned socialist comedy podcast called Chapo Trap House, and hexbears themselves are unsurprisingly also very irony poisoned. On top of that they were an insular unfederated community for three years, with no reason to make their banter intelligible to outsiders. They have a rich set of in-jokes and an emoji list a mile long. Your exposure to them is probably one thread where you argued with them and ten threads of lemmy.world users making shit up about them in absentia.