What people consider "demonstrated" depends greatly on how they feel about a thing. We're asking users to err on the side of assuming good faith. That's not easy, so if you're not making a strong conscious effort to do it, you're probably not following the guidelines. (I mean anybody, of course—not you personally.)
What's the good faith scenario in this case? Even hypothetically? The CEO isn't aware of how the system (he is in charge of) works?
Sure. I'm in charge of HN and I don't know how all its systems work.
And there are plenty of other scenarios you could imagine if you wanted to assume good faith.
Sorry, I'm not buying that scenario. This is not some obscure internal system.
Nevertheless, please assume good faith when commenting here. All our defaults point us in the opposite direction. It takes a conscious effort to counteract that, and the survival of this community depends on it.