A specific deficiency with users that I don't see talked about is the type of user who has to post even if they have nothing to say. You can go to IRC chatrooms with an explicit technical focus and find guys treating it like a local pub "Sigh, my wife has HPV..." or a direct message session with their teen bestie "OMG I VOTE FOR THE PENGUIN OF DOOM IN YOUR POLL". These people want to post because they map posting onto social interaction, which they (understandably) lack. You can have people post like this without even having parasocial relationships with any of the other posters.
From a content perspective the issue is when they post but don't have anything to say. Even a very unique person with a real spark of genius can post coal if they have this deficiency, because they keep posting when they shouldn't and the forum doesn't sift the gems from the coal. This phenomenon is less apparent on a forum with a layer of low-brow humor like this, but it does exist.
I've thought about using IQ testing in captchas on forums to limit participation in threads to posts either approved or authored by smart people. This would be a good start but would not fix the problem mentioned above. I suspect that locally hosted mixtral GPT models could be used to quantify genres of bad posts and provide users options to automatically filter them. The post where it is just an insult or a brag on an anonymous account. The post where it is a guest describing their non-generalizable experience with a subject as a one-off. A meme repeated, with little or no distinct content or context. This sort of solution wouldn't be good for the sloggy.
