> But the fact that a company can do this to another company at the flick of a switch In this instance, the flick of the switch added a prompt asking users whe

> But the fact that a company can do this to another company at the flick of a switch In this instance, the flick of the switch added a prompt asking users whether they want to opt in/consent to Facebook tracking their activities on other apps. If Facebook is truly taking that much of a hit from that, it tells you how many users opted out. If their advertising model only succeeds by tracking users without their explicit consent, then their model is a failure.