Because this project has been abandoned so if suddenly the market rises sharply it is very hard to believe. it's better this token just thrown to the Yobit market, shitcoin must be collected together. if on yobit you can hoping as much as you can because sometimes someone pumped and dumped all shitcoin as they want it. well this just my imagine, unfortunately this won't happen because.. .. .. .. .. .. ..abandoned project!
I highly doubt that even YOBIT will add it now because this is a full blown shit token now with nothing functioning.
Postoken code is a mess thats the main reason why IDEX and Coinexchange is still on maintenance mode since the day they got listed.
You should check out Staker Token they made a new smart contract code fixing all the flaws and issues of Postoken smart contract.