Not to be out of line here, but why are you participating in the group if you don't 'approve' of its practices? I mean, what is it about people sharing that upsets you? Or is it that you despise poverty, and perceive this more as some sort of electronic panhandling? Again, why would that bother you? You've obviously got the means to buy your own juice, and don't appear willing to give any of it away, which is fine. But then, why would you complain about people that want to ask/give for free?
You are aware, of course, that Facebook is pretty much a den of intellectual inequity, right? I'm not saying it's totally lacking in substance, but a lot of what you're seeing on that page is probably straight from the keyboards of kids who are too young to even walk into a vape shop and buy liquid (no offense kiddies, I was there once too), or those who are old enough to buy, and old enough to want to be wannabe hipsters, but young enough to lack the means. Judgments aside, people in those boats obviously have to resort to asking for handouts.
I guess the overriding question is, if you consider yourself a "vaper of refinement", why are you still hanging out at K-Mart?