I didn't say it was. But everyone should be in the business of not being evil and not exasperating the problems of others. In trading that means not contributin

I didn't say it was. But everyone should be in the business of not being evil and not exasperating the problems of others. In trading that means not contributing to flash crashes. I am not saying that this guy's trading did contribute to flash crashes! He may have successfully implemented systems to prevent that. I hope he did, and if so I'm interested to hear how.