As social media adoption grows globally, online problematic behaviors increasingly escalate into large-scale crises, requiring an evolving set of mitigation strategies. While HCI research often analyzes problematic behaviors with pieces of user-generated content as the unit of analysis, less attention has been given to event-focused perspectives that track how discrete events evolve. In this paper, we examine 'social media crises': discrete patterns of problematic behaviors originating and evolving within social media that cause larger-scale harms. Using global news coverage, we present a dataset of 93,250 news articles covering social media-endemic crises from the past 20 years. We analyze a representative subset to classify stakeholder roles, behavior types, and outcomes, uncovering patterns that inform more nuanced classification of social media crises beyond content-based descriptions. By adopting a wider perspective, this research seeks to inform the design of safer platforms, enabling proactive measures to mitigate crises and foster more trustworthy online environments.

翻译：随着社交媒体在全球范围内的普及，在线问题行为日益升级为大规模危机，需要不断演进的缓解策略。虽然人机交互研究常以用户生成内容片段为分析单元来剖析问题行为，但较少关注追踪离散事件如何演变的事件导向视角。本文研究“社交媒体危机”：即源自社交媒体内部并不断演变、造成更大规模危害的问题行为离散模式。利用全球新闻报道，我们构建了一个包含93,250篇新闻报道的数据集，涵盖过去20年间社交媒体特有的危机事件。通过分析代表性样本子集，我们对利益相关者角色、行为类型及后果进行分类，揭示了超越基于内容描述的社交媒体危机更细致分类模式。通过采用更宏观的视角，本研究旨在为更安全平台的设计提供参考，从而采取主动措施缓解危机并培育更可信的在线环境。