I have used USDT as a stablecoin in the past, which may or may not have been a smart move as rumours have it that it is not backed up by fiat reserves to the extent it should be. But I could've used SBD instead because SBD has been rather stable in the past. If only I had exchanged my SBD after the Bitcoin rally thinking SBD is a true stablecoin, I might have been met with a pleasant surprise ... :D