That's not a real Hitler image, it's a photo of a wax figure at "Madame Tussauds" in Berlin. While I don't think this is the right place to use such a photo, I

That's not a real Hitler image, it's a photo of a wax figure at "Madame Tussauds" in Berlin. While I don't think this is the right place to use such a photo, I don't think it should be censored. You probably know the movie "Der Untergang" and all the fake-dub videos on youtube. Guess someone uses an angry Hitler face out of this movie? Most people know that it must be ironical, however… to cut it short: It's probably unprofessional, maybe childish. But that's not illegal.