visit this page: https://www.gentoo.org/get-involved/mailing-lists/all-lists.html go to the bottom. try to view archives for gentoo-core or similar restricted lists. get bounced to a 404 page. if the archives aren't available, then can we grey out/disable the archive link ? this makes it look like we might have intended for the archive to exist.
[master 4edb1f2] mailinglists: No meta links for private lists (#572016)