Can I disable getting a notification on a page or for a user for "Task marked complete" only?
Sometimes pages contains many of these for personal use, task lists etc. and sometimes this can be to annoying for others. As a result they end up removing themself as watcher, ending up missing valuable changes.
unfortunately the official documentation describes that is only possible to switch on/off completely. The administration UI does not provide a more detailed "switch". Sorry. 
Hi Community! I’m Elaine, Confluence Product Manager. You may have read my earlier post about page tree in space navigation sidebar. I'm excited to share another improvement that helps you organize ...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs