Just adding my personal opinion on the matter:
As a member of the FC, it's not so much the sharing that annoys me/that I think is unfair, it's people complaining about how they can't join for various reasons but still acting like someone else should be obligated to post TA messages. I've seen it many times on here, people saying "Oh, that's a lot of money, I can't afford it" but then they buy Ayu's latest Bluray release and photobooks or whatever. I mean, it's their choice what they purchase with their money, but don't complain that you don't have access to Team Ayu when you choose not to pay for it. And I'll repeat myself again: Joining is simple enough with tenso, so you have an option to be a member or not.
EDIT: Ayu-me, I totally LOVE your set.