um, I'm not sure exactly why what motivated that comment, but its extremely possible to believe every word there from a purely logical perspective, as opposed to an emotional one. yes we shouldn't post personal attacks, but saying 'Zuckerberg got lucky' and 'seems to chase the latest "it" thing' doesn't need to qualify as a personal attack. these can just be normal observations. see I wouldn't say the same things about sama, because I don't think they're true, and I dislike the both of them.
as for the newsguidelines, I think it "gratifies one's intellectual curiosity" to think about what motivates tech ceos and talk about how they do things