The point of my comment is that unethical behavior, even when you're early 20s, will cause people to assume the worst with you. Facebook's current privacy policies and attitudes are alarming enough, but they're far more alarming when taken into context with Mark Zuckerberg's alleged past behavior.
Most people don't read full articles. They look at the headlines and make assumptions. Mark's put himself in a position where the assumptions that people make are going to be negative, and that's going to hurt his business, even if it's unfair.
When I first read the headline, I assumed the story was going to be something like Zuckerberg looks at Facebook user's private messages and makes trades based on the private information in those messages. Obviously that's not the case, but it wouldn't have surprised me with the way he treated user data, especially early on in Facebook's history.
Most people don't read full articles. They look at the headlines and make assumptions. Mark's put himself in a position where the assumptions that people make are going to be negative, and that's going to hurt his business, even if it's unfair.