I don't blame ignorant people for being suckered, even at this stage, but also especially in countries that are still underdeveloped or are culturally dependent on several layers of "authority culture."
I could certainly punish him, but, that doesn't make it right for me to do so. In order to justly publish, one must have some kind of authority to do so. I struggle to see where that proper authority would come from to do that.
Social shunning was death in tribal cultures, but, much of the world has lost that kind of cohesion that would make that kind of thing an effective punishment.