The fact that the pony fandom is still not fully separated from 4chan /mlp/ is not great.
Yes, the fandom has its earliest roots there, but that doesn't mean we need to love and tolerate people who think that adding a "Z" to the n-word is hilarious. "It's just a joke" doesn't cut it.
I'm a pegasister for life, but for fuck's sake, that's not okay.