The secular priests, guardians, gate-keepers are both hard to define but easy to spot. Anyone, I suppose, who takes it upon themselves to extropolate an abstract notion and turn it into a bunker. Let me say I don't believe folkies as a group are prone to authoritarianism, the ones at festivals seem a liberal and jolly lot by and large, but a few have strong ideas about what is and isn't acceptable and are keen to demand everyone agrees, usually citing 'sources' (an extraordinary thing to do).
A two layer folk is what we have in practice, a pragmatic form and an austere one.