My doctoral research aims to conceptualize and improve creator moderation design based on (1) content creators’ voice and (2) multiple platform stakeholders’ collaboration. Four of our previous publications in the CSCW conferences have uncovered the socioeconomic impacts of moderation on creators, as well as the fairness and bureaucracy challenges they undertake, implicating the transparency design requirements for addressing these challenges. Two of proposed future studies will pivot into evaluating and refining creator moderation design with different platform stakeholders. First, I will explore how audiences and creators recognize creator moderation’s compatibility with platform ecosystem (e.g., monetization, recommendation algorithms). Second, I will organize participatory design workshops with stakeholders such as creators, commercial moderators, and audiences to redesign creator moderation to balance different stakeholders’ stakes and platform’s top-down moderation efforts. My dissertation aims to contribute to HCI and CSCW fields through the notion of creator moderation and comprehensive design and policy solutions for a safe and sustaining platform ecosystem.