Servers might also defederate from each other based on community input. Donald Trump’s Truth.Social is actually part of the fediverse, but it has been defederated from by many servers. Some capitalists made brands.town for corporations to join and advertise, and they were prompty overrun with satire and widely defederated from. Users can still mute & block at the individual level too. A network diagram is shown to depict this
https://cdn.masto.host/vissocial/media_attachments/files/110/550/061/589/356/516/original/9a4d909733d5f6ad.png