I completely agree. Every so often I get an itch to have a look at Reddit, and though the niche subs still seem alright, the comments of anything near the front page are beleaguered with low-quality jokes and karma grabs.
God forbid you’re actually interested in discussing the subject, any comment that takes more than a few seconds to write or read gets buried under a thousand others like your first examples.
I go through spurts where I’m posting and commenting a bunch, then I get weary of being online and disconnect. When I am posting, it’s usually to places with stuff I like to take pictures of, like !beebutts@lemmy.world.