Are you implying they want to do big data on how people touch themselves? or because, therefore, implication, ads?

I was thinking more about how people move, and how the motion capture data would be amazing for many purposes such as person identification, activity identification, learning what cultures/sports/injuries/ailments/etc. correlate with what styles of motion, learning "tells," as in poker, about how people are feeling... the list of applications of this data could go on for quite a while. It also could feed into research on some styles of robot locomotion.