31000 on each direction.

Reddit is heavily American-centric.

At least on Lemmy, there can be multiple communities with the same name with different rules, focus, region, and culture.

Huh. My experience with Nostr is essentially similar with fediverse. As it was decentralized, everything is depends on each instance and which kind of people you follow.

Not everyone on Nostr are everything you just said. Some people are literally using it the same way as Mastodon. Just making friend and talking about random hobbies.

Mastodon right now is essentially macroblog and/or microblog. Entirely designer for different purpose than Lemmy.

Any group-based social media will have higher possibility of interaction due to easier way to find similar interest, whether Lemmy, Reddit, Facebook Group, Misskey Group, even traditional self-host forum.

???