coinexchange.io is a scam one, I don't think so.
Please stop kidding us, LOL.
It seems that Block Node coin has had strong, really strong support around 60 satoshi; and it is likely hard to be broken at this price range.
coinexchange.io
yobit
Usually cheaters are adding coins
We never faced any issue with CoinExchange. But if you don't feel confortable with it, you can try to trade on Cryptopia