I have learnt to stick to popular sites like Poloniex, they are quite selective of the type of coins they list on their markets.
Yes you are right poloniex is good market for trading altcoins and it can be trusted at least for today,
So do you have been disappointed by poloniex or something else disappointing on trading?
Disappointing in trading is topic of this thread, not discussion service.
Let's back to topic because i don't get related between poloniex and disappointing in trading, you did'nt explaining about it, thanks.