In a world where fedi is more of a set of sometimes-connected communities it's much more important to make the choice of community(ies?) to be part of less permanent. Already today people fret a lot about the choice of instance to join and sometimes join none.
(Somewhat tangentially related, I found the description of desiring a community while having doubts about it in https://clarkesworldmagazine.com/kritzer_05_23/ though-provoking, in that it describes an, I think, common problem that is rarely described in this fashion.)