Give me some proof that both Nabi Studios, and Notch have no problem with people selling their minecraft accounts, then I'll believe you. In the meantime I suggest you read this--->https://minecraft.net/terms
Show me a PM or something with Skulfuk saying that it's perfectly fine.
My offer for this breach in the User Agreement of Notch is 5tc.

I was talking too skulfuk and this is what he said "<SkulFuk> anyway to keep it short, mojang have no rule to state you can't sell an account thus we wont do anything to stop you... just make sure you post it in somewhere appropriate if you insist on doing in on the forum."