To Andy Florance, the CEO of CoStar Group, the trade secret lawsuit Move, Inc., the parent company of listing portal rival Realtor.com, recently filed against his firm is all a “PR stunt.” “Effectively, you create a bogus story and you use a relatively junior person as a pawn and you get a story out there,” Florance said. “And the question is why? What is their strategy with that? Realtor.com...