Yes, David Dunning out of Stanford U. back in the late 90s. I read part of that paper. Seems that those with the highest opinions of their abilities are often the least adept at them and don't even seem to realize it. One wonders if the bias is based on real illusion or a systematic process of denial. I don't recall what the study had to say about that. The flip side of that study showed that the people with the greatest ability often didn't even fully recognize it in themselves. They were either humble or measured their own ability too conservatively. The upshot anyway is that you have to identify which of these two you are dealing with in order to gauge the quality of the information you are receiving. More to the point of what you posted: those who over-inflate their own confidence in their abilities almost never take kindly to being told about it, even if you avoid trigger words. Knowing why this happens with some people certainly helps me to not take everything too personally.