I'd say it's great for anyone. I'm classically trained, but a decades-old university education doesn't enable me to just magically know the idiomatic way to do

I'd say it's great for anyone. I'm classically trained, but a decades-old university education doesn't enable me to just magically know the idiomatic way to do X in a language that was created after I graduated. My real question would be, what does this do that Google's Stack Overflow hits don't do. One would hope that the answer is, "Give me advice on how to do it in Python 3.6 that didn't get downvoted to death because there's already a SO question on how to do it in Python 2.7." But the cynic in me knows that, in software, particularly software's social environment, the only effective way to clear out the old, obsolete, broken wheels so they're not always in the way is by re-inventing them.