I'm not quite sure what the purpose of a verification pic is if you can't see the person's face (or if you are inclined that way, their genitals).
I always thought that verification pics were to establish that the representation the poster made of him/herself was true. And if the paper tag with LPSG/username on it isn't in a picture showing those things (face/looks/body)... what's to stop the poster from putting up (non-verified) pics of some other person's face/body/genitals and claiming them as his or her own?
Just a thought.