That is something I considered. Many partisan sites love to point out the errors of the other side. I know Fox News loves to call out CNN all the time. However, if every site did it, I fear that would just lead to more confirmation bias. And why report that the other side was right? That hurts your viewpoint.

What we need is a non-partisan non-profit to do it. But then there’s the problem of funding (which results in conspiracy theories).

Seems like the best way now is for the reader to make notes to themselves and regularly check back to them and see how things changed, compared to where the hive mind was earlier.