You don't need to do all that, you only need one account as they are all federated, meaning they can talk to each other.

The exemption is beehaw, because they are defederating temporarily to put less strain on the servers

It's not about the servers, it's about moderation. They have a clear vision of what their instance should be like but they don't have the tools not moderators to make it so while getting traffic from other big instances

in the future when they possibly have more moderators and the influx of users has slowed down on lemmy.world, would it be easy to federate again? i know many instances defederate from others that go against their beliefs or how they want to run the community, but ive not heard of any that have re-federated