MarsSeed [1] filed an orphan request for polly-b-gone [2]: Source is reported unavailable since 2021-09-17 (in AUR comment), and it is still the case. Also flagged for the same reason since 2023-11-21.
[1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/polly-b-gone/
