slug: m9
title: Community Sync & Revocation
vision: A user can opt their local profile into community personalization, and later leave — removing their contributions from future ranking without destroying local history.
features:
- m9-community-profile-sync
- m9-leave-revocation
- m9-retroactive-purge
- m9-purge-rematerialization
created_at: 2026-03-03T06:29:37.962436Z
updated_at: 2026-03-03T06:29:38.030047Z
schema_version: 1
