mutt-orphan now also has reason "rfa" for mass-rfa'ing on request. You can also override the maintainer name in the email body and add some additional text to the template.
(The new maintainer name feature can useful to orphan packages with team in the maintainer field but only a single human as maintainer and the orphaning should happen in the name of the human.)
remove-uploaders can now also have "orphan" as reason, when a maintainer asks us to get removed from his (team-) maintained packages.