> The boundary between a beginner and a coding rockstar really isn't very great

I respectfully disagree. My experience says the difference between a beginner and a really good, experience coder, is HUGE, and not only on fields like "machine learning" but in everyday commercial systems.

Unless, of course, your platform is something like Java where everybody is crippled to an extreme degree.

That is, if you get 400 people on a room, tie their hands and their feet, they most likely dance with the same skill, their dancing experience notwithstanding ...