It is not necessary to talk about fraud here. You do not understand the very definition of fraud. I will not explain to you the meaning of this concept. But the topic. People buy Ethereum not only to earn. They buy to participate in the ICO, to transfer the altcoins from their wallet, since the transaction must be paid. Still buy Ethereum, when they sell some coins, but did not decide what to do next, so they leave the investment temporarily in the Ethereum. What you write is an absolute nonsense.