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Characterizing Bluesky Content Moderation Service: From Automation of Service to Landscape of Harms

arXiv · AI, language, vision and robotics · article · Sep 10, 2026 · UTC

Empirical research on content moderation is fundamentally constrained by the opaque deployment of moderation systems on major social media platforms. To this end, the recent emergence of decentralized platforms with transparent, public moderation logs presents an unprecedented opportunity for independent audits. In this work, we leverage this architectural transparency to conduct the first large-scale audit of the default moderation system on Bluesky, the Bluesky Moderation Service (BMS). Analyzing its 10.6M moderation labels from 2025, we investigate three foundational aspects: (i) its mechan

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Evidence & attribution

First collected: 2026-09-20T19:02:05.452Z. This is not the publication date.