I feel like those who are hesitant to prove that they're Black most likely aren't Black. If they were Black, it doesn't, nor should it take much for them to post a hand picture with their username and date.
Some of the most abrasive posters (specifically the ones trying to persuade individuals to not vote, spreading misinformation, instilling apathy, etc) in these political threads ain't show up to verify themselves; it's safe to assume they're not Black.
Unless deformed and ain't got no hands, why be hesitant to post a hand picture? It's not like you're being asked to post butt naked or show your face with your teeth showing, and if you're concerned it isn't like people gonna jack off to a picture of your hand either...probably won't happen, but mods should make it mandatory for maybe not every poster but specifically the ones who have agent/troll vibes to verify or else be bushed/banned.