This is the level-headed answer. I was about to complain and moan about the KYC (Know Your Customer/Client laws in the USA. If I recall this is a Mexican exchange and like banks and financial outfits worldwide, they do not wish to fall under the repressive US laws. Those who have mentioned this exchange on Steemit, in my recollection, are @dollarvigilante TDV and @hilarski. They happen to live in Mexico and Panama respectively.