That kind of sounds like an opinion. If his cited sources (which presumptively were somewhat important to the point he was making) should (or would have, which

That kind of sounds like an opinion. If his cited sources (which presumptively were somewhat important to the point he was making) should (or would have, which may be subjective. I don't know because I'm not a Facebook employee and have no direct knowledge of the now-secret information) have been secret, then it stands to reason that it would have been more difficult for him to make his point. If that's the case, it sounds like they've changed an entire policy organization-wide to stop more posts like this, or they've made no global policy changes and selectively hidden information that would support his point. Either way I'm curious about this culture of openness and what defines its limits.