Sadly, I'm sure any social platform where one can make their own private community (actually private or perceived to be private) will have more of these than most of us think. Its just that we don't see them.
I'm also not surprised that services like discord is seemingly relaxed at moderating them, as its a problem that is invisible to most users. Moderating is expensive, and unless it hurts public opinion, seemingly its not worth it for them
I loved Mariners line about the enterprise crew talking slowly. The difference in speed between the SNW and LD dialogue was something I noticed and this one line made it click for me. Fantastic