Ive been trading on the same two popular exchanges for a while. But now I want to trade FNTC token which is trading on Ethen.market. It looks the same as other exchanges and says its decentralized but how do I know my private keys are safe with them? They are new and dont look very well known. Is there a way to know they are safe if they havent been around for too long?
Don't see why you would need to go to a new exchange as long as the established ones like IDEX and Etherdelta exist. I will never switch to a new untrusted exchange. There are so many of them everywhere, like garbage.
If I were you I will just wait for that coin to be listed in other exchange sites rather than risking my coins especially you need to import your private key. However, if you really want to sell, just take the risk by sending to other wallet and use it to that exchange.
It's fine to consume more gas rather than compromising your wallet.