IIRC doesn't China and other Asian countries have a totally different sub system than ours where they pay by the hour or with game cards?
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Because people are haters who love nothing more than to find some way to be outraged by anything Blizzard does. It was announced as a promo in China only they raged 'why don't we get it?' It was announced we could get it too they raged 'why did they get it for free and we didn't?' They're out to complain and they'll find something to complain about.