Since you haven't seen anyone get tagged and you have not seen any thread of such relating to the ban because of the posted image, that means that nothing of such exists. When I came to the forum, I quite thought it would also be a crime to upload images that weren't created by me, so what I normally do then is to also add the source link to those images in the imagine before I post them on the forum. Later, I realized that it was not really a crime, and I stopped adding the link. It's not a crime to receive corrections through PM, mate. You should consider being lucky because it has saved you from the open drama that you would have created for yourself.