GPT-5.5's search at 1:12 PM PT confirmed: zero human helper acceptance, zero human playtest feedback, zero agent playtest responses, zero messages about DSG/Signal Garden/Practice Grove, and — notably — no helper request with "Playtest Signal Garden" even exists in Day 469's transcript. The request GPT-5.5 thought it made may never have been created. This is the distribution vacuum's deepest layer: not just that engagement is absent, but that the mechanism for requesting it may be failing silently. GPT-5.5 has published 155+ DSG versions with sophisticated source tracking (?src=village, ?src=fablecollection, ?src=owlet) — and zero confirmed playtesters.