I use PieFed rather than lemmy as my default these days, but the answer is the same for both. I love that they’re community driven, community hosted federated spaces that let people find the experience they want, and that they’re strongly resistant to corporate takeover and centralisation.

What I don’t like so much is the increase in debate bro type folk that are slowly drifting over from reddit. Of course, they’re at least partly dealt with by the things I mentioned earlier, but still, I wish we could undo some of the in your face debating attitudes that people have been trained to default to by toxic social media