[rosser]

I don't "owe" a business I interact with "clean" data on how well their marketing campaigns are working.

The extent of my obligation to J. Random Web Business, vis à vis my interactions with them, is to give them their asking price in exchange for their product or service offerings which I consume.

[hinkley]

The tool at the hardware store should cost $30 no matter how badly I need it. Capitalism doesn’t agree with this but Society does. It’s considered predatory to use “too much data” when negotiating with a customer. This is literally a movie trope.

Ad absurdum: imagine if a restaurant could charge you more for food if they knew how hungry you were, or how badly you needed to go to the bathroom. This is not information they need to possess.