BlockBeats News, October 11th, Arthur Hayes posted on social media, stating that rumors have it that a major centralized exchange's automatic deleveraging of cross-margin positions was the main cause of the massacre of numerous altcoins in this round of sell-off. Congratulations to all traders who placed low orders to buy the dip, as the prices of many high-quality altcoins will likely have a hard time returning to those lows in the short term.