I need for the user to post to a forum but to make their thread "private" ; i.e. only visible by the user and Mods.
Some customers will want to submit confidential info, so we want to be able to give them the choice to make it private.

I see you can make a forum "private", but that means that the mods have to grant access to a forum on a user-by-user basis which wont work.
Also this would mean that other users with access to the "private" forum would be able to see it, which breaks the customer-to-mod privacy need.

Have you come across a similar request like this before?
Is it possible? is it possible with additional coding work?