Is it possible to restrict the use of specific tags to moderators/admins only in Google Groups (e.g. "status-completed" on Meta Stack Overflow)? I've taken a look at the Google Groups help pages and done a search on Google, but neither yielded any useful results about whether this is possible or not.
Google Groups – Restricting Tag Use
google-groupsgoogle-groups-tags
Best Answer
At this time the group administrator could enable and allow certain users to enter free form tags, but no to block the use of tags.
References
Enable and create tags for a group - Groups Help
Permissions - Groups Help