Consider if a person posted research. Usually they would be hopelessly forgeted. Now they could go back and edit it to a troll face saying "ninjaedit: ujelly?"
wrong.Badspot can view past edits.
But he can't see edits in pictures unless it's screenshot'd first. He can only see edits to the forum posts themselves, I think.
Try using dropbox.I've done this before with a picture of strovbe