I can trust John Carmack's words when he says in an interview, or on stage. There's a passion in his talks, a nervousness in blurting what he really feels, and those are really good traits, in my mind.

I genuinely felt a sense of disappointment when he moved to Facebook (via the Occulus acquisition). So yea, fuck you, Facebook and your manipulative, life values corrupting and PR machinery.

I place John Carmack miles above Zuckerberg.