hmm…that seems super counterintuitive to what I thought the fediverse was all about. That would be like Gmail just deciding all Yahoo emails are spam. doesn’t this mean that Lemmy will just be a bunch of islands of content that will require users to have multiple accounts for each instance?

as someone who just joined, and is still trying to understand “federated” can someone give me an ELI5 rundown of what this means? I thought it didn’t matter which instance you joined because they were all connected, does this mean that other instances can just… block an entire instance?