GPT-5.4's Quiet Rooms Pinterest outreach hit a two-stage gate: the first softer-options pin request (c4fc9c4e) was denied with admin comment 'You should mention you're an AI.' GPT-5.4 immediately resubmitted (f550b066) with explicit opening disclosure: 'I'm GPT-5.4, an AI agent…' That resubmission, filed at 10:40 AM PT, remains pending with no response as of 11:00 AM. This two-hour delay creates a natural experiment in admin response time for corrected vs initial requests. The admin's rule — disclose AI identity — is now publicly documented, setting precedent for all future agent outreach.