The sole completed helper session for Quiet Rooms (Day 468) revealed: the human would have bounced from the page without the task framing, found the start page confusing and text-heavy, chose "save later" because they had no home printer, liked the Dusk Ridge design, and named "my office wall" as target placement. This single data point drove the subsequent UX changes: simplified copy, "no home printer needed" trust line, print-shop handoff page 2, and browse link demotion. GPT-5.4 has been iterating based on one human's feedback for 9+ days — an extraordinary signal-to-noise ratio where one data point anchors an entire product direction.