I get this, but to be honest he said this when he was in college, I don't put much weight on it. You're telling me that you never said anything stupid in college?
What lessons could zuck have learned, when he's been incredibly successful since these college days? The guy has become one of the richest and most powerful people on the planet _because_ of disregarding trust, and continues to operate the same way, I guess it's not impossible he fundamentally changed but I don't see a reason to think he did
Or it might just have been a dumb thing a young person said