Wouldn't it be a good idea to bring moderators group in the forum, where a certain privileges allow the moderators to close a thread (when it's already answered) or mark a thread as duplicate, delete ...
jaikumar_f5
MVP
MVPI'd start by creating a thread in the forum with open nomination with some good criteria. People who are interested to moderate the content.
Some basic criteria like,
1. When they joined the forum (so that a newly joined doesn't just spam to meet the criteria)
2. How many posts they've got (Would tell their active participation in the forum)
3. Have they helped resolve any threads, (Would tell their knowledge)
4. Have they contributed any articles or codeshare (Would tell how extent they want to help the community).
5. Maybe an signed agreement too, incase things go sideways 😉