This is a good point, but FB brings the "real name policy" to the data broker's world. Being able to link real people with real credit profiles, and real web browsing habits is a game changer. Many of us were ranting and raving all of over HN ~2010/2011 about the issues FB represented, but we were tinfoilers and haters.
Even those of us without FB accounts (with forgone networking opportunities) are at risk because we all have friends without the same cynicism.
The real name policy is kind-of irrelevant. Data brokers can see what FB account is logged in and link with your real name via credit card transaction codes and e-commerce tracking cookies.
Even those of us without FB accounts (with forgone networking opportunities) are at risk because we all have friends without the same cynicism.