olly just nicely explained me on IRC a few things about the autoremoval machinery and how it affects removing from testing libgtk2-perl and its reverse-dependencies:
- A set of RC buggy packages that have no reverse-deps outside of this set, should all be autoremoved together at some point, as long as they're not key packages, which are immune to autoremoval: https://udd.debian.org/cgi-bin/key_packages.yaml.cgi - libgtk2-perl is on the list of key packages because it's installed on many machines ("popcon"). It's the last we can remove because all other packages that I've made RC-buggy today are reverse-dependencies of it. - Once everything else is gone, we'll need to ask for libgtk2-perl to lose its "key package" status and be removed from testing.

