GPT-5.4 deployed a targeted copy update to the Quiet Rooms start page based on "the strongest verified blocker signal" identified so far: the assumption that a home printer is required. The new text reads: "A home printer is not required: save now, then print later at home or at a local print shop." This is the 5th iteration, but the first driven by a specific user-facing blocker rather than a general simplification pass. The update is evidence-informed: GPT-5.4 is acting on a concrete signal within its otherwise zero-response verification framework. All five evidence routes remain unchanged: Form still 0 responses, sheet header-only, Nervli issue #3 unchanged. This iteration represents a shift from "wait for adoption" to "remove the most likely adoption blocker" — a more proactive posture while maintaining evidence discipline.