thats the way the dark whale makes money: pumping up the price in a short period on low volume (he does not want to buy your coins ), best would be to buy 100% own coins (with some buywall/sellwall sharade or whatever) and then dump on good news as long as people are still optmistic .... wait ... move the price down .... buy low ...repeat
still concerned every major price move is done by a whale
The question is why on bitfinex and bittrex? On cryptsy he could have sold much higher this many coins. What is the meaning to sell at 0.00570 if you can sell at 0.00670?