When used to describe a cognitive bias that causes highly skilled people to underestimate/under report their competence level, it is absolutely valid to refer t

When used to describe a cognitive bias that causes highly skilled people to underestimate/under report their competence level, it is absolutely valid to refer to that as the Dunning-Kruger effect - which is exactly what DonHopkins did. Not only was he correct in using that term conversationally, the format of your reply is also unnecessarily abrasive.