If true they could inform me and give me better understanding of the world around me.
Sadly, I find, most of them rely on gut, opinion and lack rigor. They lack basic scientific investigative techniques. So we end up reading mostly opinion backed by further opinion, sometimes backed by unreliable social sciences studies. By unreliable I mean the results are often one offs but they are cited as if accepted fact.
For example, antivax. The opinions of antivax are given the same credibility as epidemiologists. That to me is egregious. Sometimes they do the right thing and call out the questionable opinion as they tend to do with the anti global warming crowd.... But I bet that is helped by their political leaning more than by their being rigorous.