Earlier quoted context omitted.
The most galling offer we saw on the mobile app side was something that would turn on the user's microphone, and listen for ads on tvs around them to track what they'd been exposed to offline. Adtech is such a thoroughly gross field.
But every time this comes up the threads are flooded with people saying it doesn't actually happen and the ad companies just work out what you're interested in by what you're browsing.
I open them to get my increasing amount of cash.
That data must be valuable???