I am not very fond of the market with a system resembling etherdelta, idex etc., because almost all tokens listed there are not well developed
On Ethen you can add any tokens yourself and create orders with them. Just press on the token drop-down list in the top bar and select +NEW TOKEN. After you enter the address, the token ticker will be automatically detected, and the token will be ready for trading.
So this is basically there is no need to make some kind of vote to get a coin listed in Ethen, just like in another exchange that requesting everyone to make a vote of something like that.