High bar is subjective, you're only filtering by the most superficial aspects: are there swear words? Do they have citations? Do they "sound" smart? Are they saying something "problematic"? Same here. There's no cadence. (I'm not talking about /r/AskHistorians though)

I've found hidden gems in free for all, no-karma, no-upvote forums such as 4chan. And you pay attention there, because people are not trying to sound smart.