I don't like that it's just as much of a time hole as any social media and 99% of the content isn't actually relevant to my life, but I might read it anyway knowing full well I'm wasting time.
Although some of the smaller subreddits on niche topics are pretty similar in quality if you find those
Almost everything on topic and relevant, very little tech circle you know what's about random coding projects nobody will remember in a week, all jokes and casual conversation was original and not just "Sigh, unzips" reposted, limited influence from cringe culture, bodybuilding boards, Kiwifarms, etc in most places.
Everything going mobile, then endless scrolling, then disallowing signatures and making avatars and usernames microscopic changed everything.
Dislike: Down voting. Down voting just makes for an echo chamber (as someone else already mentioned.) It's a terrible, nasty, way of punishing people who's posts don't fit the popular cliques viewpoints. It should be replaced with either a mandatory "this is why I down voted" comment, or flags that everyone can see. Like "off topic", "insulting", "spam", or things like that. At the least, it should cost karma to down vote. Oh, and if you down vote, or flag, and it gets reversed, you should lose karma.
I don't like downvotes (in part because it makes upvoting difficult on mobile), and would prefer a flag-for-review (to further tax the mods, I assume), but if the fade-out from downvotes helps reduce spam and low-quality responses, I can live with that.
I also don't like that there's a dopamine drip of upvotes at all, and find the number near my username distracting. This is the only social media platform I use, and most of the time I'd rather be reading a book but this is so easy to browse.
Posts like this are a helpful kick in the pants to go away and read a book.
That's one of the main things I don't like about reddit
Edit: huh apparently this has a name, TIL: https://en.wikipedia.org/wiki/Law_of_triviality
It filters out a lot of low quality content but then it converges to the average opinion of the users
Same on reddit
Everybody trades off, so you never know when you're one of the real ones.
HN loads fast and has next to no ads.
Dislikes: sometimes overwhelming pedantry, and recurrent culture war garbage masquerading as Libertarianism.
Inability to delete your account.