It is a coincidence, but why most of people who cash out their USDT to bitcoin, I do not think the coincidence can explain it.
when you sell an altcoin and get bitcoin in return, that doesn't change bitcoin price. otherwise bitcoin price should have shot up to the moon every day since there is a couple of altcoins being dumped (after their daily pumps). USDT is not an exception.
I did not mean bitcoin is a stable coin for now, but it started to show to us there is a potential to be a stable coin
again you are using the wrong term. bitcoin is now stable. it is not a stable coin. and this stability is a short term trend not something that will last forever. eventually when mass adoption is reached years from now, we can see a better stability.
Their fluctuation in the past leads to the birth of USDT。
you are wrong. USDT was not created because of fluctuations. instead it and all the similar ones were created because people who are trading cryptocurrencies prefer not to have anything to do with fiat. so having something that "acts similar to fiat" is useful.
You think Tether has no trouble, ~
i don't know how you got that from my comments! Tether is in fact one of the shadiest and riskiest altcoins that has been created.