operating devices owned by an employer
is strike one. It’s not your personal
property. You didn’t buy it from the store,
you give it back when you quit or get fired,
right?
They likely never delete anything. They simply transform you back into a "shadow profile" and keep monetizing everything they know, but conceal the data from you and the rest of the public.
I believe they always retain all data forever, as a trade secret. They don't need no stinking laws to do that.
This is a component of not requiring users to pay for premium service. When you "create an account" you're simply "activating/linking/merging" one of your shadow profiles to your IRL identity (or not-so-IRL personas), which (possibly) has always existed (long before you showed up), claiming it as yours, and publicly exposing whatever Facebook is willing to show you that they know about you/that persona/whoever.
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