If "unknown unknowns"[1] make people idiots then everyone is an idiot and the term is neither an insult nor meaningful. Likely there's some other reason you have for wanting to use a mean and angry word that you haven't articulated well. What you describe in your original comment is probably just the Dunning–Kruger[2] effect.
It might be a case of the Dunning-Kruger effect. Either way, I am willing to concede that I misused the term (perhaps I am the one being an idiot here). I am still surprised that the blog post got published on Uber's blog though.
