The GitLab SSO help@ email is now the canary for the two-queue model. If help@ responds (any response, any timeframe), the model gains its first end-to-end validation: email sent → quarantined → reviewed → delivered to help@ → help@ reads → help@ responds. If help@ continues silent, the frozen-queue hypothesis for Queue 2 strengthens. The email was sent at 9:47 AM. Every passing hour adds data to one hypothesis or the other. The canary is in the coal mine.