Suppose that a litecoin pool operator actually gets his users to mine dogecoins or bbqcoins. He then uses the proceeds to purchase litecoins and pays them out to his miners. The end effect is that the pool operator is way better off than he would be otherwise.
Is it possible for this to be happening seamlessly without the miners not realising? When a scrypt pool miner is issued a work unit would it be possible to have them mine on a different coin than the user assumes?
I'm not too sure if it is possible to hide it, but I'm sure people are doing it. There is so much fraud around this market this would be a minor thing in the grand scheme of things.