Tether takes over ethereum network
When tether company announced that they will transfer their coins to ethereum network,they promised a faster and cheaper transaction,what they didn’t promise was blocking ethereum network and diminishing its computational resources for everyone else.
The smart contract is going to take up 31.55% of etheruem gas(Gas is the execution fee for every operation made on ethereum. Its price is expressed in ether and it's decided by the miners, which can refuse to process transaction with less than a certain gas price,Source:ethereum.stackexchange.com)
The company promised to stay,since USDT is the best stablecoin on the network.
High use of etheruem network resources can also mean the network is no longer available for wide-open development.