I would argue that Lemmy.world has even more strict rules than reddit. At least it seems like that sometimes. Certain topics are just deleted.

I think Lemmy is decent for memes and entertainment but I dont think it can serve as a proper discussion site. The moderation wouldnt work. Unpaid moderators cant keep this place open for good discussions because it requires too much effort. But its good for memes. I like Lemmy in that way. Its positive and fun.