I was thinking of adding a note to https://meta.stackoverflow.com/privileges/moderator-tools about not deleting questions closed as duplicates which is applicable across all sites. If I edit one page will that change get duplicated across all sites or not?
I don't want to cut and paste the edit lots of times plus I don't have rights to edit that page on all sites.
The change is something along the lines of:
It's a good idea to keep questions closed as duplicates on the site. They provide additional routes to the answer. Think long and hard before voting to delete.