NOTE: This suggestion is for Confluence Server. Using Confluence Cloud? See the corresponding suggestion.
It would be nice if there was a "Manage Watchers" permission. I'd like to open up the permission to more than just administrators and space administrators
Allow for adding or removing a Space Watch on behalf on another user
Allow author to add certain audience as a watcher of a page or space
Allow REST API to return watchers for a page/space
Add the ability to allow non-admins to manage watchers