edit: How about this, you can send 0.15BTC to 3P1o6BafmQomjKjakbK4ske8Lq8hCkJhiU to "speculate on the price of" 10 ETH -- I will not allow you to ever receive this ETH but you can sell this right to "speculate on the price" of ETH to anyone else who is a willing buyer. In my specific case, I am not scamming because I am disclosing your inability to receive ETH ahead of time, but LiveCoin did not do this, and as such is scamming.
Wrong again

They did notify users that withdrawing/depositing MONA had been suspended until further notice would be given.
Wonderful. Please post here once you have sent the tx, since you are such a strong believe that this arrangement is entirely ethical, and in no way a scam.