"communityism" was somewhat the goal of reddit by having subreddits but still site owners has all the control over you. Lemmy is a free software and many free software projects interact with the userbase with such a community. Before this reddit thing, Free software enthusiasts used lemmy. Same goes with mastodon users before twitter was bought by elon. Now i can see when whatsapp does something shit(maybe) and people porting over to federated and decentralised E2EE matrix for instant messaging.(or maybe they just switch to telegram)