Also, just to add, in some cases it's better not to leave a message in public because you're almost "outing" that person for making a mistake. We try not to "out" anyone unless they aren't responding to a PM or don't realize the mistake they are making, like with constantly posting watermarked photos for example.
I think most people would rather see a PM with the post deleted than a public message in their post with the photo deleted........well, at least I would.
Slick