The push behind this update to WhatsApp’s privacy policy not only enables Facebook to serve more relevant ads but also could, in the future, allow for targeted and contextual-based advertising in WhatsApp. Putting the power of messaging app data to work could help the industry deliver “pull” advertising – advertising at its best – within a self-contained, do-it-all platform.
Source: Will WhatsApp Spark A ‘Pull Advertising’ Revolution? | AdExchanger