Ethereum is working hard on moving to an upgrade of the blockchain. This gave many cause to call Ethereum a scam. The network tried to be scalable while presenting the opportunity to offer smart contracts.
While there is a lot of development going on with Ethereum, it cannot scale at all. The app cryptokitties saw the price of a transaction jump to $20 and proved the network could not handle the traffic.
This is what critics of Ethereum were saying all along.
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