lol, good find. nothing surprising there. a lot of people overestimate CZ's scruples. he'll do anything if it means striking while the iron is hot and grabbing market share.
he was the king of fake volume pumping in his days as okcoin CTO and no doubt brought that expertise to binance. and when he decided to create binance, he publicly dragged okcoin and star xu through the mud with allegations of faked audits etc, which he used as a platform to build his own reputation. he fights dirty and isn't always acting on the up and up, that's for sure.