The Dunning Kruger effect occurs, because with less knowledge, you also don't get the actual knowledge of how much knowledge you could still archieve, because you are not knowledgeable enough yet to know.
That's why people with semi to low developed knowledge/skills tend to overestimate themselves. This affects us all. There are basically no exceptions. The best way to counteract this, is to increase knowledge and educate further into a topic.
That's why i could "dunning kruger this" topic hard, because i don't know, if "reduced engine braking" is actually fixing the "low engine inertia" issue completely in rF2 because of lack of knowledge.^^
When you know, you are incompetent, it's called "wise".