Fair use is like a guilty plea. You're saying "yes I violated the authors copyright, but I should be allowed to." Then a judge decides if you're right. They use

Fair use is like a guilty plea. You're saying "yes I violated the authors copyright, but I should be allowed to." Then a judge decides if you're right. They use a test, and much of the criteria is a spectrum. However commercial use is more binary. You charge for something, you lose points. Is this work transformative?