The idea of a Tether worries me in the first place. There's also the EURT on the Ethereum blockchain. These seem to me like the crypto-equivalent of a Federal Reserve Bank. I understand the value of a stable coin, but I think decentralization is the higher priority.
Why aren't Tether and Bitfinex located in the US, anyway?
I'd rather see stability arrived at by new complexity emerging from evolving blockchains. A tether coin based on the performance of many high market cap cryptos would demonstrate stability in the way index funds do...
I think we ultimately want to be divorced from fiat entirely, yes?