No need worry at all, cryptopia is safe. But please read any details by them for example do the deposit and withdraw option is available or not. Sometimes they maintenance some wallet so you cant get your fund out or in to that exchange. Also their support is doing fine, i mean is not fast but in one day they clear my trouble and answer all my questions.
I fully agree with your great talk.
They are not be scammer, they gives service very well. Every time can not be work proper there has many issue, such as internet problem, server problem, wallet maintenance etc.
So wait and see the future. Best luck of trading.