I love the concept of differential privacy, but it seems hard to incentivize the "data hoarders" to actually use it, even if you ignore the challenges of building real-world differentially private systems. Google and Apple use it for some things, but in general it doesn't seem like something the market will use by itself.
Also doesn't help that differential privacy itself is maybe too arcane and subtle for the public to talk about and demand, unlike for example encryption which people probably generally at least understand to mean something along the lines of hiding their data in some sense.
Also doesn't help that differential privacy itself is maybe too arcane and subtle for the public to talk about and demand, unlike for example encryption which people probably generally at least understand to mean something along the lines of hiding their data in some sense.