“Master all prior art before naively trying to do anything on your own” - also, very much does way more harm than good in a learning context. (it narrows the top of the funnel for no good reason)

The gripe seems to be the negative effect on the team, business/project outcome etc, sure work doesn’t pay you to write your own compiler.

But again, its such a disservice to learning to dictate a shape, largely academic, largely top down (vs bottoms up failing & flailing).