The current tradition may simply have to change when it comes to the Fediverse, because the Fediverse doesn't work that way. It can't work that way because instances are independent of each other. There's no central authority that can decide which one gets to have the "startrek" community name or the "FaceDeer" username.
If you want there to be a central authority to decide that stuff, then you don't want the Fediverse.