This is Quit sad but there is nothing they could do. when its come to maintenance and security its quit expensive so when you are not getting returns its does not make it a business. I really appreciate how the has made it publicly without running away with peoples asset.
You're right, yeah like Cryptopia 
i think it's different from cryptopia cases.
Cryptopia closed because they got hacked and lost million of users fund but on coinexchange closed because of purely a business decision
i usually use coinexchange to trade there because they listed many coins that i can use to Arbitrase between 2/3 exchange
Not until weeks ago when I decided to give a try for arbitration and considering using coinexchange.io next week after withdrawals all my coins in my recent site.
So sad that I cross this section just to find out that they are upon closure .now I need to find another one again