
If I'm going to use something in my backstory that has no outright lore, I try to be as vague as possible so I don't have to do too much retconning later.
For instance: Armi was a priestess for Nymeia, she lived in temple of sorts with other priestesses, and will be leaving the temple officially once launch/Phase 4 hits as she is kind of mad at the Gods or whatever. There's not really a lot of lore that says this kind of thing is even in the game. So the temple is somewhere in someplace (She'll usually answer "Oh you know.. outside of Gridania somewhere") and has a "few" people living there. No specific numbers, no specific anything. If it comes out there's no official preisthoods or anything, then it was just a small faction of dedicated worshipers who took her in. I don't have them heavily ingrained in the lore churches just in case. I made it vague, but still completely plausible and, somehow, making it vague makes it more plausible, since it's from Armi's point of view and she doesn't know everything about the church.
On your specific question, Unless it states in the lore that's what it is, you'll never get a consensus on whatever "it" is does. Ever. Look at the Duskwight thread, while everyone is happily collaborating, everyone has come up with different ideas of the tribes since their is no lore. It was an easy fix to say Tribes do different things and they just continued talking about it. The Hipperion thread is doing the same thing, coming up with rules for their subset of their tribe but not expecting anyone else to follow those rules. It's not really cool RP wise to make up lore about canon things and expect the rest of the community to treat it as fact. So, no one does it. If you're unsure about something, but need to discuss it for whatever reason, keep it as vague as possible until confirmed. That's really it.
For instance: Armi was a priestess for Nymeia, she lived in temple of sorts with other priestesses, and will be leaving the temple officially once launch/Phase 4 hits as she is kind of mad at the Gods or whatever. There's not really a lot of lore that says this kind of thing is even in the game. So the temple is somewhere in someplace (She'll usually answer "Oh you know.. outside of Gridania somewhere") and has a "few" people living there. No specific numbers, no specific anything. If it comes out there's no official preisthoods or anything, then it was just a small faction of dedicated worshipers who took her in. I don't have them heavily ingrained in the lore churches just in case. I made it vague, but still completely plausible and, somehow, making it vague makes it more plausible, since it's from Armi's point of view and she doesn't know everything about the church.
On your specific question, Unless it states in the lore that's what it is, you'll never get a consensus on whatever "it" is does. Ever. Look at the Duskwight thread, while everyone is happily collaborating, everyone has come up with different ideas of the tribes since their is no lore. It was an easy fix to say Tribes do different things and they just continued talking about it. The Hipperion thread is doing the same thing, coming up with rules for their subset of their tribe but not expecting anyone else to follow those rules. It's not really cool RP wise to make up lore about canon things and expect the rest of the community to treat it as fact. So, no one does it. If you're unsure about something, but need to discuss it for whatever reason, keep it as vague as possible until confirmed. That's really it.