@Edent dang, not even a bug report helped escape the dreaded RPI increase :p
would be interesting if Amazon “soft-deleted” buckets for ~a month, maybe strongly suggesting you recreate the bucket if it still sees requests?
admittedly, (as you mention) this sort of thing catches out domains as well- I remember Microsoft forgetting to renew passport.net and hotmail.co.uk a few decades ago https://web.archive.org/web/20000303032920/http://www.doublewide.net/ https://www.theregister.com/2003/11/06/microsoft_forgets_to_renew_hotmail/
Michael Chaney's Personal Web Page at Doublewide