When installing Guix System from the iso image, users should be told to pull and reconfigure regularly. Even though it is mentioned in the manual, not everyone reads manuals. I believe Guix’ target users include inexperienced users who do not know that they should update and upgrade regularly. Therefore the installer should tell users how to do so and that it is important and perhaps what to do if things break.
Of course, some users still won’t update and they should have the liberty to decide for themselves, but some users just forget to update. Ubuntu defaults to automatic updates, which slow down the machine and annoy users. Still, maybe there should be notifications like a cron job invoking libnotify’s notify-send. Regards, Florian