Thats why an exchange is a good thing, dunno why dev's dont want it on an exchange
Since when do the devs decide this? There is a high probability of this coin being listed on CoinMarket.io today.
They didnt want to be listed on some other exchange.. dont know though what theyre gonna do if someone lists them "without their permission"
As I said exchange is always good to avoid people getting scammed on forums and to establish a price