Community engagement and building a social network around a product can aid in product development by creating a loop of learning prompts, sharing work, and providing feedback. This allows both the company and the members of the community to benefit from each other's feedback and collectively build great stuff. The insight highlights that by leveraging the hardcore group within a community, a product can evolve and improve through collective engagement and participation. This approach may not be immediately apparent to an outsider, as it involves using the community to simplify product usage, but it proves to be a valuable and effective solution.