It'd be useful if the author revealed how she managed to obtain her data. I am pretty sure that a request with just your real name wouldn't reveal much. I assume that most data is collected under some identifier which isn't matched to your real name in order to thwart this kind of 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.