The USDJ stablecoin is being phased out as part of a strategic shift to focus on the more advanced USDD. USDJ, an older version of the SAI stablecoin, requires an upgrade to align with the latest DAI standards. However, due to its decentralized nature and outdated code, the team has decided to discontinue USDJ. The transition ensures that no user incurs losses during the phase-out process, reflecting a commitment to user protection.