He could, of course, say that nobody is forced to share their beliefs on Facebook. (My own "religion" is currently blank, for instance.) Still I get the impres

He could, of course, say that nobody is forced to share their beliefs on Facebook. (My own "religion" is currently blank, for instance.) Still I get the impression that Facebook does so much tracking of users via embedded wotsits that they know your religion / politics / sexuality et cetera...