Maybe, but he's in charge. If he cared about the concept of learning from feedback and trying to find out what is true from criticism, that sort of approach would be part of the whole FB culture and would be part of how speech-writers write things.

Regardless, being nicer and more thoughtful than Trump is such a low bar it's meaningless. I could believe Zuck to be that way and also believe that Zuck is a fundamentally clueless sociopathic moral monster. I don't really know of course. I suspect there's at least some complexity here.

But it's not just this letter, everything I've ever heard from Zuck indicates that he believes his own company's BS or at least stands by it.