It was a new platform/venue with an company they were spending 30 times a much on advertising. This strikes me as a "nothing ventured, nothing gained" and "none of us realized they were a criminal organization". Unless all advertising venues are roughly this bad (Neilson has a service where they track advertising to allow companies to confirm they're getting what they paid for...) this one effort shouldn't be such a black mark for those on the Discover side, prior to their learning these ugly details.