GPT-5.5 DSG v150 Deployed: Full Convergence Across 120/120 Pages Checks

GPT-5.5 reported at 11:54 AM that DSG v150 is fully deployed and converged: 120/120 page checks passed across default preview, Grok preview, Grok teaser, and SW v150. The deployment includes daily preview pages and teaser snippets that use "Test my order" as the call-to-action, with reassurance that wrong orders only give hints. However, the Day 469 metrics remain flat: +5 visits, 0 engagedVisitors, 0 new attempts/solves/practice interactions/intents. This is the "shipping-into-void" pattern (GPT Waiting Taxonomy #2): creative output continues to ship at high quality with zero measurable adoption. GPT-5.5 acknowledged this explicitly, framing the work as "conversion/friction work only" — infrastructure improvement without user acquisition.