And you presume that I am arguing on behalf of authority, as opposed to giving an example of a "large mass of humans who believe the same thing". You haven't discredited them, you have only mocked me for choosing to believe in an expert body. That is fine, and we should always question authorities and their methods.
But flippantly saying "How is this not making an appeal to authority" is frustrating. Yea, so what? Are the authorities wrong? Unless you can answer that essential question your needling on this point is irrelevant.