Which may still be of value
if you know and can recognize mediocre code.
Some code is like a giant pile of dirt; you need someone to pile it up and then you can go in and clean up the edges and make it "good" whereas other code is entirely delicate all the way through.
The big question is how much is each one and can it help. I suspect it helps for many, but those who know enough to recognize where it can flaw will have an advantage.
But newer programmers may never really "learn" the code the way the older ones do, as they'll just let the computer do the basics.
