I key this back to all of the social akwardness of the Facebook CEO. Honestly, that guy is a little weird. Even weirder that a billion people have trusted a socially awkard guy with their full browsing histories and every aspect of their social life.
This latest move just proves to me that Zuckerberg really is there to take advantage of you and spy on you. At first with the open graph and the like buttons and all of that people were speculating that Facebook could easily follow and gather internet crumbs and store them for later. And now here is a press release openly saying they are going to be selling this data for profit. There is ZERO tact in this.
It will take a while, but I'm starting to get the feeling that Facebook will destroy itself in its never ending quest to justify its hype.