I couldn't agree more. FB is a hugely sinister outfit. There are more disclosures about other FB patents in this NYT opinion piece. Some of them are really jawdropping: would you like FB to predict the day you die, for example?
Thing is, though, that people can't pull themselves away from FB. Which is mainly because FB was deliberately engineered to be chemically addictive, by producing changes in brain chemistry. So the more bells and whistles Zuckerberg adds to his monster, the more addictive it will become.
And this man is spoken of as a future presidential candidate. God help us all.