The medical school application system, AMCAS, sells the information of every medical school applicant. I had to call the recruiters’ office and explain to them that I have multiple failing organ systems and take more than 10 medications a day. I asked if they could get me a medical waiver for chronic kidney disease and they sheepishly agreed to remove my name from their list.

To be somewhat pedantic, “Nazi” is not a demographic identifier. Demographics almost always refers to more immutable features like age, sex, gender, orientation, race, nationality, citizenship, etc. Political ideology is a way to divide and count people, but it’s not something that is reliably counted as a demographic indicator.

They can get your actual region off your billing details for subscription pricing. The content availability might vary by IP, but the pricing is going to go off your billing address. That’s why I pay taxes on some of my subscription services is because my state has a tax on that while other states don’t. When signing up for a new service, it doesn’t show me the total with tax until I enter my address.