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Spanish Football (soccer in American) League uses their app to make the public into unwitting police.
https://www.bbc.com/news/technology-44453382
This is a great example of a counterpoint to the "But I never do anything wrong, so I don't care" argument.
If your favorite watering hole was closed down because it had the game on, and it's your fault because you had an app on your phone listening for such things, would you then care?
(edited to remove typos)