Why haven't multi-communities been added to Lemmy?
A multi-community would be all communities with a certain name, across all instances. It would prevent powermods from being a problem on Lemmy.
i think it should be notated with m/<insert name here>, just like communities but with m instead of c.
Lemmy is open source. The developers are working on this for free (minus some sponsorships). PR's are always welcome to help add new features you want :)