The mailing lists and maybe even where you were old links if organized redirect, I think it would have been convenient. Example https://lists.freebsd.org/pipermail/freebsd-arch/2014-August/015726.html contain link https://phabric.freebsd.org/D527 this broken now, actual link https://reviews.freebsd.org/D527
Moving that to the people who can do such things, they can decide wether they do it, or not.
Closing this, it's several years old, and IMHO, is no longer worth it. Sorry.