I’d be happy to see a branch (fork) of Quakerism which dispensed with membership on the grounds that there’s no way to “be” a Friend, only Friendly, as a modifier to one’s actions, as fleeting as the Now Moment itself. You “are” a Friend now, and again now, but it takes work to “stay in the moment” as such.  It’s a practice.  You don’t get to rest on your laurels, as the Romans put it.  It’d be fun to see how that turned out.