Hi jgart, Thank you for the invitation! jgart 写道: > Not sure what to do at this point. At this point, not much: you might reply to the mail with a non-empty subject, and hope that people will reply to that one, or that they will manually copy it when replying to your original post. Others might add a meaningful subject of their own, as I have tried to do. Still, expect some untitled ‘Re:’ messages. It's not the end of the world :-) Mailing list archives are just that: snapshots of each message sent to members. They do not generally offer a way to modify recorded history[0]. They do not really track mutable state such as ‘topics’. Threading is (or should be) based on message IDs, although some archivers will use the subject as an additional heuristic. bug-guix/guix-patches are simple bug trackers built on top of mailing lists that add such mutable state (‘bug title’, priority, openness, etc.) but this is a separate database. Kind regards, T G-R [0]: Exceptions like GDPR and ‘asking nicely to remove embarrassing info’ exist, but are by definition exceptional and often involve human administrator action.