It's a neat org. Hearing voices isn't really uncommon and doesn't mean there's anything wrong with you and they're trying to raise awareness of that. Check them out. Hearing voices, outside the context of serious mental illness, is just one of those weird human quirks that some folks have like the cilantro gene or ear wax variations.
Haha. There's a couple of major kinds of ear wax in the world. I forget the details though, but I think it's split between parts of asia and everyboyd else.