Yes I think they do. Ask the dude that posted a deer in his driveway that arrowed, he posted it one day before archery season opened and ended up claiming it was just a joke. His screen name had something to do with spear fishing or something like that. He had links to gobs of trophy fish he had speared, very impressive. It was such a big deal that he deleted his post, and then the site installed an auto-save feature because I think they couldn't do anything with deleted photos.
Try joking about a lion like that and see what happens.