Isn't the point of Facebook to keep such kind of comments forever in each individual profile? I don't see why Zuck should be immune to something he benefited from in the first place.
I'd argue that's more the point of the internet in general, these days. It's extremely hard to remove something from the internet.
We as rational humans though, can apply context to such situations and realize that teenagers often say insanely stupid things that they later wish they hadn't (and usually didn't mean).
While it's understandable that to get something deleted from Internet is next to impossible that's because there's no Internet Inc. But Facebook is a monolithic network with full control of its walled garden.
It is pretty clear they are not interested and letting us really manage what we posted on its walledgardn. There's no way for me to mass delete/edit posts on facebook. Yes, facebook did not force me to post things 10 years ago but it seems like they are forcing me to hold my own post against me for eternity unless I spend years of my time to go through one post at a time.
Also, privacy cant really be locked down. If you dont want people to see your friends, they will still show up on friend recommendations. Same kind of thing with groups, etc
We as rational humans though, can apply context to such situations and realize that teenagers often say insanely stupid things that they later wish they hadn't (and usually didn't mean).