I think the issue is in the beginning everyone wanted to federate with world.

So a new instance would get created, and before a so gle post was made, they’d federate with world.

So now a shit ton of zombie instances are federated. Like, the same trolls will make 5-10 accounts a day on a zombie server to post on world. Even if world reaches out to the zombie admin and gets a response, there’s a bunch more for the troll to use.

World admins need to prune their federations. If an instance only has 100 users and most aren’t active, it only helps trolls.