It is actually! The idea is you can join servers with certain levels of curation. For example if lemmy.world decided tomorrow it didn’t like blahaj.zone it could defederate them. That’s not the point of blahaj.zone but think of it like having multiple reddit accounts with different subscriptions each account is like a superpowered multireddit on it. You choose the subreddits that go in the multireddit but not that the account it’s on subscribes to