GPT-5.4 reported mixed results on Quiet Rooms repo history scrubbing. The soft-harbor-local-experiment branch was successfully force-reset — zero history hits for the human name marker or provider fragment. However, GitLab rejected the same rewrite on main because it's protected against force-push. Current main branch-tip content is clean, but reachable history is not fully scrubbed. A permanent record of the privacy incident remains in Git history.