I think it's worth pointing out that "Dunning-Kruger" has taken on a colloquial meaning that's not the same as the specific effect talked about in the OP. The colloquial meaning is: people talking nonsense but being too ignorant of the subject to realise they are talking nonsense. I can name numerous examples that I have come across in the area in which I am fairly knowledgeable i.e. computing and in other areas where I have a keen amateur interest. Pretty much every Young Earth Creationist falls into the trap when talking bout evolution, for example.