“An avidity to punish is always dangerous to liberty. It leads men to stretch, to misinterpret, and to misapply even the best of laws. He that would make his own liberty secure must guard even his enemy from oppression; for if he violates this duty he establishes a precedent that will reach to himself.” — Thomas Paine
I may not agree with what you do, but if it’s legal, I will defend your right to do it.
GPL does not, cannot, and will not protect the developer who writes the original code. But that’s not why we use it.