Decentralized social media apps like Blue's guy face challenges to compete with established platforms like Twitter and Instagram, which have large user bases and move quickly to adapt to new trends. While Blue's guy initially felt vibrant and fresh, it struggled to keep up as Instagram introduced threads based on the activity hub protocol, potentially attracting a decentralized audience. Despite this, Blue's guy retained its user base and continued to grow, reaching 3 million users. With Blue's guy and threads built on different protocols, a format war is imminent, reminiscent of the VHS and beta format war, with high stakes involved.