I think it would be cool if I had the option to put a tag on comments. Sort of like the badges I can add to members, a badge to add to comments as a warning before deletion.
For example : Spam, Inappropriate
Or as a reward for helpful comments.
For example : Well done, Important
The way I envision it is like this:
1. I ( as the moderator) can create tags and choose a name, color and image for each tag (like the way badges work).
2. Inside the forum I could click on the three dots on the corner of a comment,
click on Add tag and then choose one of the tags I created.
3. On the comment, a circle/ellipse will appear for everyone in the forum to see. The circle will have the color, image and/or name that I set in step 1.
4. The writer of the comment will be notified of the tag in his notification page.