My first question is: how does Github know that certain committers are from sanctioned countries? Do they have Github profiles showing they're from sanctioned c

My first question is: how does Github know that certain committers are from sanctioned countries? Do they have Github profiles showing they're from sanctioned countries? Given the number of huge FOSS projects on Github, it's feasible to imagine that many major repos have code contributed by people from sanctioned countries. I have no idea what their motive is, but it smells really political to me. I could see Github's argument if they violated labor laws by hiring or contracting with individuals illegally, but that doesn't sound like what happened here.