It makes business/economical sense, and some of the algorythm's rules were logical (ie : have people of same country/language meet), but I think the way we disc

It makes business/economical sense, and some of the algorythm's rules were logical (ie : have people of same country/language meet), but I think the way we discriminated on assumed income and race to be a bit more questionable. Another thing is that they used to bought ads targeting female users in developing countries to "feed them" to users of richer countries hoping to bait them to pay money (to send digital gifts for example).