Just a quick list to verify. We need to check if those have other proxies, or if someone merged a PR without proxy-maint in metadata.xml. Legend: <proxied maintainer> <other maintainers of the package> <packages>...
Dessa@gmake.de cpp@gentoo.org dev-libs/Ice Sergiy.Borodych@gmail.com perl@gentoo.org robbat2@gentoo.org app-portage/g-cpan sound@gentoo.org media-sound/gmusicbrowser ThyArmageddon+Gentoo@Gmail.com zlg@gentoo.org sys-apps/udevil admwiggin@gmail.com mrueg@gentoo.org williamh@gentoo.org app-emulation/containerd app-emulation/docker agk@redhat.com cardoe@gentoo.org robbat2@gentoo.org sys-fs/lvm2 alexander@tsoy.me aidecoe@gentoo.org chutzpah@gentoo.org floppym@gentoo.org sys-kernel/dracut aranea@aixah.de williamh@gentoo.org sys-apps/s6-linux-init sys-apps/s6-linux-utils sys-apps/s6-portable-utils sys-apps/s6-rc arfrever.fta@gmail.com (none) dev-util/gyp cjk@gentoo.org app-i18n/fcitx app-i18n/fcitx-anthy app-i18n/fcitx-chewing app-i18n/fcitx-cloudpinyin app-i18n/fcitx-configtool app-i18n/fcitx-hangul app-i18n/fcitx-libpinyin app-i18n/fcitx-m17n app-i18n/fcitx-qt5 app-i18n/fcitx-sayura app-i18n/fcitx-sunpinyin app-i18n/fcitx-table-extra app-i18n/fcitx-unikey app-i18n/kcm-fcitx app-i18n/mozc cjk@gentoo.org dlan@gentoo.org app-i18n/fcitx-rime axel@tty0.ch candrews@gentoo.org app-backup/btrbk balaji@mcs.anl.gov cluster@gentoo.org jsbronder@gentoo.org sys-cluster/mpich bertrand@jacquin.bzh idl0r@gentoo.org dev-libs/libslz bugs@bergstroem.nu dev-zero@gentoo.org whissi@gentoo.org www-servers/nginx chicago@blkid.net openstack@gentoo.org robbat2@gentoo.org virtualization@gentoo.org xen@gentoo.org app-emulation/xe-guest-utilities commendsarnex@gmail.com wine@gentoo.org app-emulation/wine app-emulation/wine-any app-emulation/wine-d3d9 davidroman96@gmail.com slyfox@gentoo.org dev-util/radare2 dev@kicherer.org zerochaos@gentoo.org dev-util/intel-ocl-sdk drobbins@funtoo.org base-system@gentoo.org net-misc/keychain erkiferenc@gmail.com patrick@gentoo.org app-i18n/translate-shell www-apps/grafana-bin fercerpav@gmail.com embedded@gentoo.org dev-embedded/openocd flo@geekplace.eu chainsaw@gentoo.org java@gentoo.org dev-java/gradle-bin haskell@gentoo.org x11-misc/xmonad-log-applet gentoo@eroen.eu NP-Hardass@gentoo.org app-eselect/eselect-wine gentoobugs@milaw.biz mgorny@gentoo.org sys-boot/systemrescuecd-x86-grub gnu_andrew@member.fsf.org java@gentoo.org dev-java/icedtea-sound horea.christ@gmail.com python@gentoo.org dev-python/graph-tool int.teo@gmail.com python@gentoo.org dev-python/discogs-client john.einar@gmail.com base-system@gentoo.org k_f@gentoo.org sys-power/apcupsd john@irc.tm stasibear@gentoo.org sys-fs/lxcfs kaikaikai@yandex.ru blueness@gentoo.org klondike@gentoo.org net-vpn/i2pd karl.j.linden@gmail.com proaudio@gentoo.org media-libs/ganv kees@outflux.net ago@gentoo.org app-admin/hardening-check lluixhi@gmail.com blueness@gentoo.org sys-libs/obstack-standalone luke-jr+gentoobugs@utopios.org blueness@gentoo.org net-misc/bfgminer net-misc/electrum luke_gentoo_bitcoin@dashjr.org blueness@gentoo.org dev-libs/libbase58 maksverver@geocities.com blueness@gentoo.org net-misc/electrum marbre@linux.sungazer.de python@gentoo.org dev-python/ImageHash sci@gentoo.org dev-python/entrypoints dev-python/ipynb dev-python/line_profiler dev-python/matplotlib2tikz dev-python/nbdime xmw@gentoo.org sci-misc/mendeleydesktop martin@mvath.de xmw@gentoo.org app-portage/eix app-shells/push app-shells/quoter masterzorag@gmail.com polynomial-c@gentoo.org app-emulation/virtualbox-additions app-emulation/virtualbox-extpack-oracle app-emulation/virtualbox-guest-additions app-emulation/virtualbox-modules x11-drivers/xf86-video-virtualbox mb@cattlegrid.info perl@gentoo.org dev-perl/String-Escape mmokrejs@fold.natur.cuni.cz sci-biology@gentoo.org sci-biology/bcftools mmokrejs@gmail.com sci@gentoo.org sci-libs/lemon nelo@wallus.de polynomial-c@gentoo.org app-emulation/sen dev-util/bats sys-process/nmon x11-wm/i3 nibheis@gmail.com office@gentoo.org perl@gentoo.org app-office/auto-multiple-choice noloader@gmail.com crypto@gentoo.org dev-libs/crypto++ opensource@andmarios.com junghans@gentoo.org app-shells/rssh peter@stuge.se base-system@gentoo.org dev-libs/libusb rich@annexia.org maksbotan@gentoo.org app-emulation/libguestfs app-emulation/libguestfs-appliance richard@audacityteam.org proaudio@gentoo.org media-sound/audacity samuel@sholland.org williamh@gentoo.org net-dns/s6-dns net-misc/s6-networking sys-apps/s6-linux-init sys-apps/s6-linux-utils sys-apps/s6-portable-utils sys-apps/s6-rc shirk+gentoo@bitspin.org gokturk@gentoo.org app-crypt/libu2f-server sys-auth/pam_u2f stefantalpalaru@yahoo.com titanofold@gentoo.org app-office/upwork tianon@dockerproject.org mrueg@gentoo.org williamh@gentoo.org app-emulation/docker-proxy tomboy64@sina.cn (none) net-wireless/broadcom-sta blueness@gentoo.org klondike@gentoo.org net-vpn/i2pd patrick@gentoo.org perl@gentoo.org dev-lang/moarvm dev-lang/nqp dev-lang/rakudo totktonada.ru@gmail.com games@gentoo.org games-action/dxx-rebirth ya@sysdump.net polynomial-c@gentoo.org app-shells/fish yamakuzure@gmx.net sci@gentoo.org sci-misc/boinc yegortimoshenko@gmail.com (none) app-cdr/b5i2iso app-cdr/bchunk app-cdr/ccd2iso
Oh, some of them can also be upstreams being CC-ed rather than proxied maintainers.
