I'm not sure it matters. The real phenomenon of fake news (made up news to gather clicks) would be useless if people cared about the "who". It seems the case

I'm not sure it matters. The real phenomenon of fake news (made up news to gather clicks) would be useless if people cared about the "who". It seems the case presented in the article, that people place more value on content that supports their world view, appears to work regardless of the source.