There's an unnerving lack of substance over on reddit. Recently I decided to look at reddit for the first time since last June, and every post's comments had 1k people saying absolutely nothing worth reading. It feels like I'm reading AI-written posts that are in the uncanny valley of almost making sense and almost being on-topic. News articles have people that literally only talk about the exact words that were in the headline. Every single post's top comments must be lame "jokes" or one-liners, and those must have several replies that riff off the joke in decreasingly-funny ways.
I've picked up a strong habit of immediately looking in comment sections for good discussion and TL;DR's on Lemmy posts and it took me a while to realize that I wasn't actually reading anything in reddit comment sections. The words pass through my brain and nothing of value is absorbed, over and over. It feels like low-hanging fruit to say "reddit is all bots now" but there's something seriously wrong about how it feels over there. You only really need ~10-20 top-level replies on a post to get a broad spectrum of answers, and Lemmy comment sections feel solid for the content that's here. I wish there were more communities here (especially niche ones), but I'm grateful for what we have.