Hi , i am from medic coin and we have listed our coin in Cryptopia in 2015 and everything is going good , i hardly notice coin activity and sales in there exchange , but after few months i noticed they have delisted our coin without any mail or information
This is not a scam.
They delist your coin due low volume. Last time I've checked it was allowed according their ToS. And they did the right thing. Supporting dead coins doesn't help them of the coin dev anyway.