Accounts named ZZZ-... are test accounts (every script in tests/ and
tools/ tags them so); the leaderboard skips them in every game instead of
showing eight ZZZ-CYCLE rows at the top. shoot.mjs waits for requests the
closing page had in flight and repeats its cleanup until the profile is
gone: a bot match created at the last moment had kept one alive.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>