> A targeted ad network needs to log/know more about you, > in order to actually target the ad. An untargeted ad network needs to know generally the same thi

> A targeted ad network needs to log/know more about you, > in order to actually target the ad. An untargeted ad network needs to know generally the same things, to mitigate fraud and inform advertisers about the size/demographics of viewers. People seem to believe an ad network that selects ads randomly is more trustworthy or less privacy-damaging than one that selects ads based on the current page or current viewer, which is a belief I consider unreasonable.