Bitfinex is the exchange in collusion with Tether, not Binance. But yes, stablecoins are an important part of the ecosystem. How they keep their price stable is still a mystery that requires much more explanation. How would you attempt to peg a stable price to something?
I changed from Binance to Bitfinex. Sorry )))
Cryptofinance, I answered your question by writing out an exploded post here - https://steemit.com/cryptocurrency/@andrew-golyanov/why-i-don-t-care-about-the-type-of-stablecoin-i-use