I don't know about anyone else, but I feel that I've learned a lot about Meta from this variable's existence, and the backstory to it. Imagine the power internal teams have where they can simply make life difficult for another team just because it's convenient, and the only way to stop it is to SHOUT_A_LIE_IN_ALL_CAPS. Pretty wild.
<a href="https://nitter.net/dan_abramov/status/1489278948517289991" rel="nofollow">https://nitter.net/dan_abramov/status/1489278948517289991</a> - for those who can't read without seeing a login screen