That wasn't my argument at all. I was responding to this claim: "I think there's perhaps a distinction here between things like personal profile information (

That wasn't my argument at all. I was responding to this claim: "I think there's perhaps a distinction here between things like personal profile information (one might not one's psycho ex to see their phone number or even wall posts, while not minding sharing them with friends) and things like fan page liking." My point is that fan page liking is personal profile information. Everything you put on facebook is personal profile information. The Bob example was merely to show that 'becoming a fan' of something can reveal profile information about the person. The fact that Bob could potentially be 'hurt' in the scenario was just to make Bob sympathetic (as opposed to the all too typical scenario where people post severely racist or homophobic content without realizing how public it might be).