if that's the case then there's verifiable material you can cite in support of your argument rather than relying on original research it doesn't matter if everyone on the planet agrees with your argument if you can't verify it or cite it it doesn't belong here if you want to argue that poster x is libellous you'll pretty much need to cite a legal opinion or judgement or say that politician y described the poster as libellous our own opinions no matter how widely shared are insufficient this article unfortunately is not a very good example of how these principles should operate