Kill What Users Don't Use
Systrom and Krieger had built a product with dozens of features. Analytics showed most of those features had near-zero engagement. Only the photo-sharing feature had traction. Most founders would have doubled down on the features that 'should' work. They did the opposite. They deleted everything and rebuilt the product around the one thing users actually wanted. 'We had been wrong about what we were building for over a year. The hardest thing wasn't admitting that. It was acting on it.'