Every one of these artist vs corporation stories is the same. Years or decades of corpos trying to weasel out of paying what is rightfully owed, trying to deceive and steal what they didn't create and doing it all with the help of an army of lawyers and the knowledge that they can strongarm their way out of everything.
But, what Willingham did here seems like a brilliant way to show DC the middle finger. I hope more creators who are in similar situations will follow suit.