Online communities can serve as meaningful sources of social support, particularly for marginalized and vulnerable groups. Disclosure of personal information facilitates integration into online communities but may also expose individuals to harm, including cyberbullying and manipulation. To better understand negative user experiences resulting from self-disclosure in online conversations, we interviewed 25 participants from target populations on Reddit. Through thematic analysis, we outline the harm they experience, including damage to self- and group identities. We find that encountering online harm can worsen offline adversity. We discuss how users protect themselves and recover from harm in the context of current platform affordances, highlighting ongoing challenges. Finally, we explore design implications for a community-driven, bottom-up approach to enhance user well-being and safety.

翻译：在线社区可作为社会支持的重要来源，尤其对于边缘化与弱势群体而言。个人信息的披露有助于融入在线社区，但也可能使个体面临网络欺凌、操纵等伤害风险。为深入理解用户在在线对话中因自我披露而产生的负面体验，我们访谈了25位来自Reddit目标群体的参与者。通过主题分析，我们梳理了其所遭受的伤害类型，包括对自我身份及群体身份的损害。研究发现，遭遇线上伤害可能加剧线下困境。我们探讨了在当前平台可供性背景下，用户如何自我保护及从伤害中恢复，并揭示了持续存在的挑战。最后，我们探讨了以社区驱动的自下而上方法提升用户福祉与安全的设计启示。