Half are bots and there's no incentive for facebook to really find out which accounts are fake, astroturfed, bot-driven and which one's are not. Instagram, wit

Half are bots and there's no incentive for facebook to really find out which accounts are fake, astroturfed, bot-driven and which one's are not. Instagram, with some of its fake accounts, now with its claimed 400million accounts, overlap with facebooks.