I worked at a small hotel during college. A couple of girls wanted to rent a room, but they didn't have a credit card. We didn't rent rooms without credit cards, but I made an exception. They paid for the room in cash and provided a small deposit. The girls were so sweet, how could anything go wrong? Well, they threw a party and completely trashed the room. Lots of damage. The police eventually showed up, but the girls were gone. The ID they provided turned out to be a fugazi. They played me.
It feels like if nobody proactively creates a privacy-preserving solution, exploitable ones arise into the vacuum. Or, as a more-depressing thought, they win out anyway.
