Does it even matter? You don't have to come on the forums and say "OH MY GOD THIS DUDE BOUGHT THE GAME AND WENT ON A CRACKED SERVER TERMINATE HIS ACCOUNT." Even if it is cracked, it doesn't even matter that much because I don't know who the hell they are.
Let me know in the comments on youtube if you think they are real or fake
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My fan fiction of the game: http://www.minecraftforum.net/topic/1957118-programmer-my-first-fan-fiction/#entry24096758