I think in the scenario this is trying to defeat, they already know who most of the other people are because their facial recognition software worked & they're

I think in the scenario this is trying to defeat, they already know who most of the other people are because their facial recognition software worked & they're already looking at their socials, purchase history, etc. All the 3 letter agencies are using this info, plus whatever else they have to construct some kind of case against them. So, they become the low hanging fruit. The more resources we give our TLA's, the less this matters, of course :)