Really like the town example; thinking of fediverse server as towns is cool. Although one shouldn't overdo it, because that's exactly the point of the Fungiverse/Fediverse: to connect people that are not locally at the same place.

I think adding an additional action is needed for defederation. It could of course be solved by many people concentrating on defederation, but then: what if a myzel has a leader. The members could just defederation without telling them.

I think it would be cool if leaders could be declared by them eating a certain mushroom, which grants them certain abilities like defederation. Of course, there might be myzels in which everyone can defederate. So basically the mushroom-eating-idea would allow more diverse forms of server-governance, which I think would be cool.