Many malicious actors responsible for disseminating synthetic non-consensual intimate imagery (SNCII) operate within internet forums to exchange resources, strategies, and generated content across multiple platforms. Technically-sophisticated actors gravitate toward certain communities (e.g., 4chan), while lower-sophistication end-users are more active on others (e.g., Reddit). To characterize key stakeholders in the broader ecosystem, we perform an integrated analysis of multiple communities, analyzing 282,154 4chan comments and 78,308 Reddit submissions spanning 165 days between June and November 2025 to characterize involved actors, actions, and resources. We find: (a) that users with differing levels of technical sophistication employ and share a wide range of primary resources facilitating SNCII content creation as well as numerous secondary resources facilitating dissemination; and (b) that knowledge transfer between experts and newcomers facilitates propagation of these illicit resources. Based on our empirical analysis, we identify gaps in existing SNCII regulatory infrastructure and synthesize several critical intervention points for bolstering deterrence.

翻译：许多负责传播合成非自愿亲密图像（SNCII）的恶意行为者在互联网论坛中运作，通过多个平台交换资源、策略和生成内容。技术复杂度较高的行为者倾向于特定社区（如4chan），而技术较低的终端用户在另一些社区（如Reddit）更为活跃。为刻画该生态系统中的关键利益相关者，我们对多个社区进行了综合分析，分析了2025年6月至11月间165天内282154条4chan评论和78308条Reddit帖子，以刻画参与的行为者、行动和资源。我们发现：(a) 不同技术水平的用户使用并共享一系列促进SNCII内容创作的主要资源，以及大量促进传播的次要资源；(b) 专家与新用户之间的知识转移推动了这些非法资源的传播。基于实证分析，我们识别出现有SNCII监管框架中的不足，并整合出若干关键干预点以加强威慑效力。