Yeah, Zuck was a jerk in 2007. I suspect even he would admit that. To be fair, though, I was an even bigger jerk at that age and still am.
He was a jerk in 2007, he still is, but he was one then too. Heck, he was probably a jerk in 2003 too.
This reminds me of a Mitch Hedberg joke.
He'll get around. He's still young. Let's see what tune he sings when he's 45-50.
He might not change his tune too much. Unlike other people that turn 45-50, he'll be going into his mid 40s a billionaire and won't ever need to experience ageism against himself directly.