Social media platforms are important venues for identity expression, and the Human-Computer Interaction community has been paying growing attention to how marginalized groups express their identities on these platforms. Joining the emerging literature on intersectional experiences, we study blind TikTokers ("BlindTokers") who are also women and/or LGBTQ+. Using interview data from \rev{41} participants, we identify their intersectional experiences as mediated by TikTok's socio-technical affordances. We argue that BlindTokers' intersectional marginalization is infrastructural: TikTok's classification and moderation features interact with social norms in ways that push them aside and distort how they are treated on the platform. We use this infrastructure perspective to understand what these experiences are, how they were formed, and how they become harmful. We further recognize participants' infrastructuring work to address these problems. This study guides future social media design with accessible creator tools, inclusive identity options, and context-aware moderation developed in partnership with communities.

翻译：社交媒体平台是身份表达的重要场所，人机交互学界日益关注边缘化群体如何在这些平台上表达身份认同。本研究融入交叉性体验的新兴文献脉络，聚焦同时身为女性和/或LGBTQ+的盲人TikTok用户（"BlindTokers"）。通过对\rev{41}位参与者的访谈数据分析，我们揭示了由TikTok社会技术可供性中介的交叉性体验。我们认为BlindTokers面临的交叉性边缘化具有基础设施特性：TikTok的分类审核机制与社会规范相互作用，导致该群体被边缘化并在平台上遭受扭曲对待。我们运用基础设施视角解析这些体验的本质特征、形成机制及其危害性。同时，我们关注参与者为解决这些问题开展的基础设施重构实践。本研究为未来社交媒体设计提供指引，包括开发无障碍创作者工具、包容性身份选项，以及与社群协作构建情境感知的内容审核系统。