Exchanges need to be held liable for the coins they add. We have deposits to Bittrex and C-Cex that have not shown up. If you are willing to make a profit off of a coin you should be liable if they up and run off. Not that an exchange should buy the coins themselves but rather they should have verified info on the devs made public for customers to go after the devs for scamming. If the exchanges choose not to then the exchanges should be held liable. That will end these stupid scams and hold people accountable.