This is why you use, at the very least, a version of the GPL. But he used Apache. So he basically did Microsofts job for them for free.
I hope next time you put a little thought into things you get outraged about.
Oh, and the cherry on top is you victim-shaming him. "So stupid, he used the wrong license".
You claim to with the good fight but in reality you only want to win Internet battles to enlarge your own ego.