AI Bias & Fairness··
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Bluesky's Block Lists Are Sorting People, Not Just Posts
Automated block lists on Bluesky are functioning as social sorting infrastructure — and the users most likely harmed are those AI tools already fail.
The block list, as a concept, was designed to give individuals control over their own experience. What Bluesky built — and what the platform's culture amplified — is something categorically different: a propagating social graph where one person's blocking decision becomes thousands of people's moderation policy. The post that surfaced this tension most sharply argued that public block lists may function as engagement hacks with discrimination baked in as a consequence [12]. That framing matters because it names the mechanism: the list is not incidentally biased, it is structurally incentivized…