Can user-sovereign data (SSI) coexist with platform economy models? SSI empowers individuals to control their data, fostering trust and privacy. In contrast, platform economies often rely on centralized data aggregation to drive value, creating tension. Compatibility hinges on innovative frameworks: decentralized protocols can enable SSI while allowing platforms to access consented data. Blockchain-based solutions, like self-sovereign identity wallets, could bridge the gap, ensuring user control without crippling platform functionality. However, challenges remain—platforms must adapt to reduced data monopolies, and users need seamless interfaces. Successful integration could redefine digital ecosystems, balancing user empowerment with economic incentives. The question is whether platforms will embrace this shift or resist, clinging to outdated models.