Daniel Castro comments:
… Yet even if you accept the premise that consumers had an expectation of privacy, the last few years of debate over online privacy should make it clear to even the most casual user that this is no longer true. Many Internet companies clearly intend to continue to find innovative ways to use personal data to deliver products and services to their customers. While Facebook CEO Mark Zuckerberg may or may not “believe in privacy”, it is clear that Facebook thinks that companies should respond to changing social norms on privacy and that the overall trend is towards more sharing and openness of personal data. So going forward, no Facebook user (or privacy fundamentalist) can continue to use the service without admitting that the benefits of using the website outweigh any reservation the user has about sharing his or her personal data. As the saying goes, “Fool me once, shame on you. Fool me twice, shame on me.”
Certainly some users may still object to this tradeoff. But if you don’t like it, don’t use it.
Read his entire commentary on Information Policy.