Fraud. Too many American (USA) consumers online now have the dreaded "entitlement mentality" and also are dishonest in so many ways (premeditated chargebacks; item not received claims on the next day the goods are dispatched; unreasonable demands; immature behavior; etc.; also massive foreign inbound registered mail theft; speed courier package theft; corruption of all kinds at the United States Postal Service (USPS); all the ails of a backward, undeveloped country) it's terrible for an online merchant! Sometimes I think it's easier to block ALL of the United States buyers than to deal with half of them and ruin your health in the process!