I agree that the avatar for E looks like he's"'threatening' or' unstrustworthy," rather than truly evil. IMHO, anyone must be psycopathic/sociopathic in order to be truly evil. And, as we know from seeing people like Ted Bundy in the flesh, their evil nature does not show through. Bundy looked like a college kid -- in fact, one reason that allowed him to catch so many of his victims was that he appeared trustworthy and totally non-threatening.
Near the end of the article, Bringsjord says that if he creates a robot/android based on his AI creation, he'll be sure to follow Asimov's three rules of robotics. However, I don't believe that an "evil" robot would ever follow Rule 1, let alone the other two.