[throwaway_USD]

That is really interesting and on its face something that should definitely be done at random...however, its sad to say I wouldn't be at all surprised if such a system of solicitations could easily be used to manipulate the date for political purposes.

In other words if you jurisdiction has a high positive test rate, you may want to bring that % down for optics and the way to do that would be to use contact tracing (tracking tools) to solicit people who have properly been isolating and their exposure would have been minimized.