In the decentralized social network Atmosphere, developers are grappling with two distinct models for handling user posts: one that empowers personal data servers (PDS) as traffic proxies, and another that centralizes control with application servers. This choice carries profound implications for user autonomy, app development, and the balance of power in a federated ecosystem. As Bluesky evolves with OAuth integration, the community must decide which path fosters innovation without sacrificing decentralization's core principles.