Indefinite storage of author metadata even after removal requests (display removed but not fully deleted from all systems). Core ToS is dated 2016 and may not reflect current data practices for AI-enhanced features. As an AI research nonprofit, may use interaction data to advance research into search/recommendation systems.
Nonprofit status (Allen Institute for AI) eliminates commercial data monetization incentive. Explicit no-data-sale/rent commitment. Open science mission aligns with researcher privacy. No arbitration clauses found. US nonprofit accountability frameworks apply. Lowest overall risk score in this batch along with Consensus.