well , USDT is pretending to be some coin playing the game as the coin that is guaranteed to remain in the same as 1 USD banknote , but it was proven several times that it's not like that , hacked several times and realized that there is no support for 1 USD guarantee.
While there is a coin which makes Exchanges to guarantee the value of 50 CHF before they list the coin , it's real Elysium ELSM (
www.e-elysium.com ) and in the blockchain it's the only coin which can't be dumped as it's called PREEMPTIVE CONSENSUS VALUE COIN.
MFFV ( minimum fixed face value ).
after this coin gets listed on exchange July 2018 everyone will realize what coin is ELSM.
There is also a donation in plan for supporting children with Down Syndrome , so the exchange will give 0.5 ELSM for every 2 ELSM coins they sell.
USDT is very dirty coin all fake , no support for 1 USD
as well as very pure coin !? the hacker created from thin air 265 milion coins and took 265 million USD for less then 1 hour , not even coin