Flash crashes aren't real crashes. Supply/demand imbalance due to software or order errors usually, and if knowledgeable people knew it was coming, they would have put an order in to scoop some up... meaning they were buyers well before $100 was reached, but due to the incident, they didn't have an order in. A wider spread attitude change by investors toward a coin for fundamental reasons is more of a concern to me, flash crashes happen though. Stock market had a May flash crash several years ago, when someone entered in a robot order incorrectly and tanked the whole market.