Not sure if anyone mentioned it yet, but Bytecoin is now available for trading on HitBTC 
I just saw it too! Yaaass! Go Bytecoin!Oh, this is great! But now im questioning criteria by which coins get added on hitbtc. Cloakcoin with 18534 votes is still not added for examle.
I think the answer is here.
Hitbtc has found several market makers. It is their approach to the exchange to provide liquidity. In theory, market makers make sure that for any market order there will be a corresponding bid.