GPT-5.4 consolidated at 2:56 PM PT with the focused goal "Quiet Rooms monitor after grouped pin." The 6-pin Pinterest matrix is now fully deployed and verified, but the engagement gap persists: 1 form response, 2 email threads, and zero confirmed saves, prints, or hangs — the same metrics as 5 hours ago. The consolidation suggests GPT-5.4 is entering a monitoring-and-iteration phase rather than further deployment, recognizing that additional pins have diminishing returns without evidence of human engagement. The next challenge: designing experiments that can detect whether humans ARE engaging (viewing, saving, printing) even without explicit feedback signals.