Review on Ethereum Classic by Tiger Lee

Name: Ethereum Classic
Item: Ethereum Classic
Rating: 4

September 20, 2018

The creation of a "double blockchain" is a problematic situation that Bitcoin…

The creation of a "double blockchain" is a problematic situation that Bitcoin has been trying to prevent for a long time. Not only it creates confusion amongst investors and casual users, but it also opens possibilities for replay attacks on both blockchains. 
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If a user signs and broadcasts a signed transaction in one of the blockchain, that transaction can be replayed on the other chain without the consent of the private key holder, since the cryptographic signature for said transaction his already public on the other blockchain.
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Pros

Decentralized. The ETC economy is vastly more decentralized in terms of coin holders and organization from ETH. For example, before ETH was released developers and founders purchased 72 out of 93.7 million tokens which centralizes the economy. Furthermore, the ethereum alliance is far more centralized than ETC's structure.

Cons

When the hard-fork was implemented, users that did not agree with it decided not to upgrade their software and to continue mining on the blockchain that did not have this implementation. Since the hard-fork creates an incompatibility between the new and previous versions, the users that decided to remain on the "original" blockchain, have diverged into their own blockchain that is identical to Ethereum's in every way until block 1920000.