Nonetheless, do you believe that stablecoins will have a future? If not, why?

Stablecoins are great players in cryptocurrency, since it is backed with USD, that could help cryptocurrency adoption, since some investors retail or institutional will start to use some stablecoins to buy crypto, especially Bitcoin. But there are some stablecoins that has lack of transparency, especially what you said, the Theter, special mention to the issue of tether before that it falls below $1 before.