Also not a lawyer, don't blame me if you follow this advice and go to jail. But as I understand it from reading Matt Levine's triply also not a lawyer blog, us

Also not a lawyer, don't blame me if you follow this advice and go to jail. But as I understand it from reading Matt Levine's triply also not a lawyer blog, using knowledge only Facebook has to trade on the market of its competitors is insider trading, on the basis that you misappropiated Facebook's data, and exploited Facebook shareholders. Which sounds like if Facebook ran a quant fund that took information, traded on it and returned the profits to Facebook shareholders, there'd be no grounds for a suit. Might even be more profitable than whatever failure as a service FB intends to roll out.