If the trading pair gets delisted, that would mean users can no longer trade LUNA for USDT on Binance. https://decrypt.co/100236/binance-warns-it-will-delist-terra-luna-if-it-falls-usdt
Just curious .... can traders short LUNA? If yes, there might be many instant millionaires over the past few hours.
In a word, 'yes'. That was part of the attack. They knocked it off the peg and laid shorts on LUNA hoping it would crash. And it did!