Regarding Guix development, if the decision is made to not change existing policy or implement another authorship mechanism, I think some text could be added to the manual explaining such.
Contributing to Guix is an intentional thing, unlike SWH. Updating the manual means contributors will, at least, be making an informed decision to contribute, knowing that names cannot be changed in the Guix repo's history due to X, Y, and Z consequences in Guix's functionality. I'm not suggesting that this solution is "the end-all-be-all" or invalidates alternative avenues, but I feel it is an improvement over the status quo with no negative tradeoffs. I would not support a solution that obsoletes time-machine or requires regular manual intervention during upgrades. Personally as a new contributor I find it gratifying to see my name in the commit history. -- Take it easy, Richard Sent Making my computer weirder one commit at a time.
