@anyx the cause of a repost could just be people getting too excited. They don't understand how to draw attention to themselves. They post and get nothing. Then they look around and they learn. They fix it, update and repost.
Most of my friends are doing this as I drag them kicking and screaming from facebook, twitter and the like. They're trying and it's legit content from a legit content creator. If people enjoy it now more than they did earlier, there just doesn't seem to be a reason to try and punish them.