I don't see others following the German argument; if anything, chalk this up to the German fascination with privacy (even though they don't really mean that they're for actual privacy).
Facebook (which I do not use) is where privacy goes to die. You have no expectation of any privacy on Facebook because the way Facebook makes money is very simple. They let you have a free account, they encourage you to make connections with others, and then they harvest everything you do so that they can repackage the results and market that data to others.
Do you really think there's an Internet fairy that wants you to hook up with your buddies for free and share memories and talk about bullshit? No, there isn't. But making Facebook about "social networking" is a great marketing plan.