Hiring a "how not to build software" developer provides valuable insights into common pitfalls and mistakes in software development. They bring knowledge of what not to do, preventing costly errors and inefficient practices. Their expertise can help streamline workflows, improve code quality, and enhance team productivity. Furthermore, they can instill a proactive approach to problem-solving, fostering a culture of learning from mistakes. This unique perspective can be instrumental in building robust, efficient, and reliable software solutions. Their role is not just about avoiding mistakes, but also about building better software through lessons learned.