“Everyone can see it,” she told me. “It’s identical except for the signature. I was very shocked. Someone just took my hard work.” Devins, however, is perturbed by the suggestion that he stole anything. “I look at it, really, as an after-the-fact collaboration between an urban planner and an artist,” he told me.
— Remix Culture Nears Its Logical Conclusion. The whole plagiarism/remixing debate is really complicated, but when you take someone’s work without telling them, editing out their name and replacing it with yours, and then call it “an after-the-fact collaboration,” you should definitely be tarred and feathered and ridden out of town on a rail.