Hmm, maybe it's because I joined in 2012 where the default subs were very different. On top of that, I dropped most of them for that sort of behavior. A lot of subreddits I'm in are small enough to filter out the cesspool of default Reddit. I just personally haven't found that on Lemmy because there isn't a ton of content here. Overall as I think about it, Lemmy and Reddit and probably social media in general is what you make it. Who you willingly subscribe/follow/etc.