I don't have any idea what is a professional crypto trader was like but the fact that he "might" be a professional, he won't handle small funds to trade and would ask a lot of BTC to start. I think you are pointing out traders that are with the same caliber with J.P. Morgan or Goldman Sachs traders? "Professional it is"


So it was profitable? seems unclear because the fact that "The bot stopped working properly" but still be able to "pumped the price into 1BTC from 0.0001BTC or around that". What really happens with this? Interesting