Comment by godelski

Also fun fact, people mistype and mistranscribe data. Some people even... put down fake phone numbers because they don't want to be tracked!

I would think in a world where we constantly get spam calls and texts that people would understand that a phone number is not a good PKI. I mean we literally don't answer calls from unknown numbers because of this. How is it that we can only look at these things in one direction but not the other?