I was wondering the same with the COPYRIGHT note at the top of all files in a code repo. Clearly someone that have the code can easily remove the COPYRIGHT head

I was wondering the same with the COPYRIGHT note at the top of all files in a code repo. Clearly someone that have the code can easily remove the COPYRIGHT header but then it will demostrate they had actively red it and decided to remove it. Plus if you add the copyright header in many places it might be forgotten in some.