This is nothing new; Ad Companies are actively marketing this features. See i.e. http://livedooh.com http://livedooh.com Quote from their website: "Audience Me

This is nothing new; Ad Companies are actively marketing this features. See i.e. http://livedooh.com http://livedooh.com Quote from their website: "Audience Measurement included The information and statistics needed in order to realize audience targeting in DOOH is gathered through livedooh’s integrated anonymous video analysis, which collects information about gender, age and length of view. Audience metrics are used by the ad server’s decision engine to optimize advertisement delivery and increase performance."