I don't understand this delisting policy.
XST has enough trading volume, more than a lot of other coins out there...
It was supposed to be delisted on the 14th, but as of today it has not been delisted. I don't think it's going to be delisted. Maybe Bittrex made that announcement to get cheap coins. They are the only exchange listing XST and an announcement like that would cause panic selling since you can't even move the coins to another exchange. They probably bought the coins cheap and now selling it make some money. Who knows maybe they might make the announcement again in the future on this or another coin (listed only on their exchange) to rinse and repeat.