It would be so much easier to believe this was a question of incentives ("it's not just/never just One Person At The Company") if Mark Zuckerberg didn't have a history of knowingly stealing from other people and generally being a backstabber

People who claim they would say the same thing about "...dumb fucks" because it's dumb to give away information (already pretty spurious, but whatever) seem to miss the other part where he says "If you need any info on people, just ask"

Because it sure seems like the pattern of behavior keeps continuing, rather than stopping, as a once young immature person who then learns