Very interesting read. But I have little sympathy for the guy in this story whose Youtube account was affected.
He decided to build a career on a 3rd-party platform he has no control over whose terms & conditions he agreed to in advance.
And he used copyrighted songs as a basis for creating his teaching videos.
He benefited HUGELY from the work of others and then was distraught when it almost got shut down. C'mon!
If I steal a car to drive my kids to school I still have to give it back when I get caught! Or, let's say I "borrow" my neighbor's car and I only do it when he is away and obviously not using it. And I always put gas in it when I return it. And I even got an oil change when I saw I had used it for 3,000 miles! :) It doesn't matter. I am still using his property without permission and that is a crime!