I guess it's edgy to dismiss celebrity outright, but Mark Zuckerberg is the steward of one of the largest social phenomena of our time, so I should think it matters a great deal what he believes--not necessarily because we should agree, but because of the potentially significant effects of those beliefs.

I agree. It's important to criticize him. Harshly. He's the harbinger of a change whose proportions are yet to be fully understand, but it's like we're all living guinea pigs of his experiment and happy to be that. I don't see how we can be fine with putting a self-declared mildly autistic little genius in charge of defining the nature of social interactions in the new millennium. "here's what I think relationships should be like", says such child playing with his own huge money-churning game.