Maybe you don’t remember that at the close to the end of GWB’s term, all you heard everyday was Bush’s fault. To most of us it was sarcasm but to opponents they honestly believed it.
I agree that the meme got overused, and I frankly am not surprised at some people posting here and elsewhere being complete idiots and or agitators.
That said, I'll comply with whatever speech code gets enacted, even if the "code" is an informal agreement.