Those exchanges need to start having some kind of public fund. A cold storage where they could show that if something happens with their operation they could continue using this fund money as a burner money until recover the loss of their clients
This is good idea mate as the investors will hesitate to re invest again since there are two incidents of hacking from cryptopia and people needs assurance whenever that it happens again they are secured on their cryptocurrency.
I used to trade on Cryptopia from time to time and found the exchange interesting for smaller coins. Even if I didn't suffer any loss from the hack, I won't trade there anymore - even if the handling and communication with the event was exemplary from Cryptopia in my opinion. My trust was lost.
Thats the safer we can do mate,because I believe that cryptopia credibility will be needing to enhanced again because those incidents must taken seriously for our own safeties as investors/traders