on August 1 will USDT be affected by the incoming event? I change my BTC to USDT by the way.
don't do it,
why would you conver all of your BTC into USDT ? we will see another ATH in coming days or weeks,
no matter what happen on 1 August Bitcoin always break another ATH every year,
don't let your fear take control of your body my friend,you can see right now Bitcoin price went up significantly because many people already regain their confident and about Segwit,Hardfork,etc ;
BIP91 now is "almost locked in" as only about half of the remaining blocks of the current period (17/32) are needed to signal for it - miners could only revert it if more than 50% decide to change to a non-BIP91 client now,or we could say it's already locked in.
Poloniex is really terrible these days,the most important thing is their withdrawal absolutly shit if you're unlucky one,
noone will respond you in a day or two,at most it'll take more than 1 week to finish it or even completly lost