I actually e-mailed to the author a year ago to ask that very question.
Her answer was that she provided her cookie ID to Quantcast and then asked for any data associated with that ID. She also promised me to include that information in the article to prevent confusion, but she never did.
Ironically, Quantcast only knew her real identity after the request.
Her answer was that she provided her cookie ID to Quantcast and then asked for any data associated with that ID. She also promised me to include that information in the article to prevent confusion, but she never did.
Ironically, Quantcast only knew her real identity after the request.