Crypto doesn't mean a safe sanctuary for scammers.Since crypto is not regulated by any organisation or govt its members, community,pools and exchanges should come forward and devise some guidelines to safeguard the interests of miners and investors.
In this case an exchange, a big organised organisation is/was in better position to have some guidelines to safe guard the interest of it's traders.And failing to do so they should take the responsibility of the scam.
Absolutely. Why the exchanges have "verification" process? this is to prevent scams. Now C-cex should do something. The ICO is not a bad idea, if all parties are honest, it is a good way to distribute the coins. The scammers should be punished.