That sort of trading is seriously high risk on any trading platform. i have even used ones that tell you so in the small print, if you were to get cleaned out there is absolutely no come back on it either. trade with caution.
i.e. broken trading platform = "accidental" loss of funds
My question is: who is at fault? From my standpoint, if the trader is paying fees to use the servers to handle large sums of money, then it's not weird to expect those servers to function properly.
My friends are losing a lot of his money caused by this glitch. But i think the polo team must improving his server, I will say the team is on the fault. With hundreds btc from the fees and they can use the better server.