Duan Yongping doesn't think highly of Tesla, says Elon Musk's character is questionable. Comment: Investing is about investing in people, and Duan Yongping is on another level. Duan Yongping bought a Tesla, says the autopilot feels amazing, added more $TSLA. Comment: Duan Yongping admits mistakes and corrects them, truly wise. Duan Yongping: I'm just casually buying and casually posting, Let the great scholars debate for me.