Not sure if this is what's going on here, but I've noticed sometimes isolated communities don't want too much attention and front load these types of things as scarecrows to keep the general public away.
As much as I hate "both sides" discourse[0], it's interesting that I see the same memes in both right and left contexts - I wonder of a creation of a "second language" to discuss divisive politics is enough of a force to spread it, or of it is intentional coopting of another sides language to dilute it.
E: [0] HN is not the place for the rest of my feelings on this. Both sides aren't the same is enough to suffice here.