So the ideal social network (from an investor's point of view) is one that presents itself as being free-to-use, is highly addictive, uses you as bait to trap your friends, tracks you everywhere you go on the internet, sells your personal information to the highest bidder, and is impossible to opt out of. Sounds like a cross between your friendly neighbourhood heroin pusher, Amway, and a really creepy stalker, doesn't it?