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