Hexbear at least has a no-tolerance policy for open slurs, as far as I’m aware. But you’re saying with regard to /r/CTH, that it wasn’t, like, people reclaiming slurs, or using “slurs” for non-marginalized groups – that it was actual, proper, undeniably hurtful slurring you saw? And by the way, what is a “dirtbag leftist”, anyway?
I can definitely understand being put off by the way that the Hexbears often talk. I have managed to have a lot of constructive conversations with the Hexbears, where they honestly just write normally and almost unfairly politely for my asininity; but when the Hexbears aren’t in Serious Mode, which is most of the time, then their comments just look like cryptic emojis and weird slang, right? And I think that’s appealing for a certain type of person, but not for others. I don’t think it’s necessarily bad to be childish or flippant, so it doesn’t bother me.
Whether the Hexbear culture is toxic is a different question. I can feel comfortable asking silly questions there or expressing sides of my identity that I might hide in other spaces, but there are also parts of the Hexbear culture that I like less and wish would change. Foremost that they could use a reminder of Hanlon’s razor sometimes.