It’s already in place. If a user flag a post as “Something Else”, you can reply to him in the flag admin panel.
I assume you want this: Discourse User Notes
Discourse have a badge to deliver this kind of message: Discourse Meta
It’s already in place. If a user flag a post as “Something Else”, you can reply to him in the flag admin panel.
I assume you want this: Discourse User Notes
Discourse have a badge to deliver this kind of message: Discourse Meta