But that's the thing. There is no actual real reason to go on Reddit.
There's no actual real reason to do just about anything. But reddit is the best place for certain types of conversation.
Edit: The default front page really is a piece of crap.
> I'm posting about the main subreddits because that's the context of OP's post since her picture was posted in r/WTF.
Excuse me?
Yes, without a doubt.
"But that's the thing. There is no actual real reason to go on Reddit."
Something like r/AskHistorians is fantastic and I could never take in such a diverse array of knowledgable points by "picking up books by qualified authors" - I simply don't have the time, nor the niche interest to read every topic to that depth. AskHistorians is full of very knowledgable contributors, has effective and tight moderation, and it's generally fascinating.
I don't have a Reddit account, so I just visit that subreddit (and a few others - AskScience, NBA, an anthropology one, etc) directly. Sure, there's trash elsewhere but the same is true of almost everywhere, anonymous or not.
By simple virtue of being on Reddit, regardless of subreddit, you are wasting your own time. It doesn't matter HOW good the top comment is, ultimately it's a gamble. How do you know if what you're reading is real?
Trust, I've been on the site for like 7 years now and I've been to nearly every sub deemed "worthy". Almost in every situation, I'd prefer an entirely new forum specifically dedicated to that topic.
By design, it's just a comment system without any features really, and that design promotes a certain behaviour, which plagues the intention of the poster in the first place, because it's not longer about sharing information, it's about sharing information in the context of it earning more upvotes, so the content becomes corrupt.