When I had a Facebook account, I thought it would be nice if I could configure it such that if somebody tried to tag me in a photo it would automatically show a

When I had a Facebook account, I thought it would be nice if I could configure it such that if somebody tried to tag me in a photo it would automatically show a comment to them saying either: User x has opted out of being tagged in photos. You will not be able to tag them. And/or: User x has requested that people don't post photos of them on Facebook. Please take this under advisement before posting such photos. You might want to ask their permission first.