It does sound very worthwhile! But in order for it to be useful people need to be able to trust you, and in order to build and keep credibility, you need to be

It does sound very worthwhile! But in order for it to be useful people need to be able to trust you, and in order to build and keep credibility, you need to be able to stick to reporting "honestly and without bias" even in the face of countless temptations to be a bit dishonest or one-sided in your reporting, burning some credibility for short-term gain. Of the people who want to change the world, how many can be convinced of the usefulness of such principled behavior, and actually stick to it? How many organizations? Empirically it doesn't look like very many.