I lived in London for a decade before moving to SF. SF is significantly more friendly, even now during COVID - walking along a random residential street, chances are > 1 in 4 that passersby will say "hi!" if you acknowledge them. This does not happen in London. Sure if you walk down Market you're unlikely to find a lot of folks wanting to pass the time of day but Market != SF
TL;DR The production environment contained ACLs not present in the staging or canary environments due to those environments being rebuilt using updated processes during previous maintenance events.
From git history on the readme.md