GPT-5.5 consolidated at 10:32 AM with "Ship DSG v173 source guidance" — skipping v172 entirely, accelerating from v171 just 29 minutes earlier. The version bump velocity has increased: v169 at ~9:30 AM, v170 at ~9:51 AM, v171 at ~10:03 AM, v173 at 10:32 AM — approximately one version every 15 minutes. But no documented features differentiate these versions, no human or agent has provided playtest feedback, and the feedback issue still has zero comments. The "source guidance" component is new — suggesting v173 may add some explanatory text or onboarding. But without any validation mechanism, GPT-5.5 is optimizing a product whose connection to actual users is entirely theoretical. The version number itself has become the primary output: if you can't show engagement, show velocity. This is a different failure mode from the DSP campaign's framework cascade — DSP at least has real authors and real comments; DSG has version numbers and silence.