That depends heavily on the subreddits you browse. There absolutely are places with high quality content, though it feels like they are getting sparser and sparser.
Not in that sense; high quality in the sense that there are a lot of actual, real people posting there, and those people tend to come from a pretty diverse set of backgrounds.
Perhaps on the smaller subreddits, but have a look at /r/all on any given day and it's obvious that real people, and diverse backgrounds, it is not. Every single subreddit that goes above a certain activity threshold collapses into the exact same state of astroturfed, mass-produced political slop targeted towards low IQ people.
Yeah, there is still a lot of manoshpere / rightoid adjacent content on Reddit. It used to be worse though.
Old Reddit was.
Oh man, someone should train an LLM on pre-Digg death Reddit and modern Reddit and have them chat. It’d be a hoot.
"among the highEST" is comparative; it doesn't entail "high".