2 things: - privacy and Facebook arent strong points for a lot of consumers. Especially younger people, which I would think (no evidence) would be the majority

2 things: - privacy and Facebook arent strong points for a lot of consumers. Especially younger people, which I would think (no evidence) would be the majority of users. - Facebook probably did this as more of a warning shot to other developers that they will clone their service as a matter of urgency if they make a offer and they dont sell. They may have learned from their Instagram purchase that it costs a lot once someone else has enough traction.