There was one called Homophobia that got like 50 members after being created like 10 minutes before. And of all things, a community about homophobia. With a drawing of a Confederate beating up gay people.
That is Lemmy Federate at work. Since Lemmy does not automatically federate the communities to other instances, someone from your instance needs to subscribe to that community for your instance to start receiving new content for that community. Lemmy Federate basically does that for registered instances. The community’s instance probably had the auto add feature enabled in Lemmy Federate, which is why it got 50 members in a few minutes of its creation.
AwesomeLowlander@sh.itjust.works 12 hours ago
Communities will only show up on remote servers if an account from that server is subscribed to that community. To increase accessibility and enhance the user experience, many servers have a bot account that will automatically subscribe to new communities so that they can start receiving posts in that community. That accounts for the majority of the instant subscribers on new communities.
rikudou@lemmings.world 11 hours ago
Yep, this is the reason, the service that facilitates this is called Lemmy Federate.
neidu3@sh.itjust.works 12 hours ago
Yup, pretty much. I’ll lazypaste the response an instance admin made after I asked a similar question recently: