What you actually do if the verification is important enough (not often) is ask for a phone number, and have a human being call them. Some e-commerce sites do t

What you actually do if the verification is important enough (not often) is ask for a phone number, and have a human being call them. Some e-commerce sites do that, presumably ones exposed to frequent fraud, for example http://www.shatteredcrystal.com/ http://www.shatteredcrystal.com/, a game code reseller.