I run a few groups, like @fediversenews@venera.social, mostly on Friendica. It’s okay, but Friendica resembles Facebook Groups more than Reddit. I also like the moderation options that Lemmy has.
Currently, I’m testing jerboa, which is an Android client for Lemmy. It’s in alpha, has a few hiccups, but it’s coming along nicely.
Personally, I hope the #RedditMigration spurs adoption of more Fediverse server software. And I hope Mastodon users continue to interact with Lemmy and Kbin.
All that said, as a mod of a Reddit community (r/Sizz) I somewhat regret giving Reddit all that content. They have nerve charging so much for API access!
Hopefully, we can build a better version of social media that focuses on protocols, not platforms.
This is coming from an American, so this explanation is going to be a bit U.S.A.-centric:
The United States of America is federated under a central authority to facilitate cooperation, trade, and freedom of movement; this is why we call the central government the federal government. Canada, among others, is also federated.
Lemmy and the like are federated without a central authority, thus having no higher authority within this framework enforcing rules they must not infringe. Each member makes its own rules in its own territory, choosing whom they wish to federate or cooperate with. When moving to another member, or even non-member, like member states or territories, you need to move to a new address within the member you wish to join.