[rothbardrand]

There's nothing cheaper than proof of work: http://www.truthcoin.info/blog/pow-cheapest/

The real reason Eth and others are going with proof of stake is that it locks up coins and thus dries up liquidity... this is a way to pump the coin price.

It doesn't provide the same level of security as Proof of Work, and the idea that Proof of work is somehow bad because it uses electricity is nonsense.

That's like saying we need to stop digging gold up out of the ground because its expensive, and we should just trade paper receipts for virtual gold.

The above post is not an actual technical argument (notice its logic is circular) and is just the type of typical FUD pumping of Ethereum you get from ethereum people.