I Heard that You gonna sell the Eth You get immediatly In the market, is It correct?
Please see MalReynolds answer. We will accept ETH through ShapeShift, which will directly be converted by them. We will never own ETH for one second.
References about accepting ETH on the lisk.io website come from before the time before Shapeshift joined Lisk as a partner. Those ETH references will soon be removed before the ICO.
There is nothing special about Ethereum.