Coins are needed on the stock exchange, what would they trade. If there is an opportunity to sell more expensive, buy cheaper and so in a circle, why just keep coins that are not doing anything yet. It's a stock exchange, not just an exchanger.

I also lost 210,000 coins there. But I started the exchange only 190 000 and scrolled them a couple of times. But in the end everything was still there, in the amount of about 5 - 6 million Satoshi. If you compare with the amounts that investors lost buying noda in some of the last coins, then this is not a big loss.