Nerys, over used is a better term, particularly as they have played him as a dime store novel evil genius every time. IMO, your use may vary. Look, I cringed when they said Zod was going to be the villain in this one, due to Superman II, but, they did him right. If Lex is done, I just ask to make him more "real" like the other characters.
Mostly I was using a Hackman Luthor quote for hopefully comic effect.