I learnt from Popper that the facts are theory - laden and from Feynman that science is the belief in the ignorance of experts.
This whole attempt to control the discourse is doomed. There's no such thing as objectivity - ones understanding of the world is shaped by one's experiences and who one is, and that's true for institutions too.
Character matters for an editorial institution, as does form. Snopes built its reputation one way, and became something quite different. And yet they have been granted a role of high influence by Facebook and thus it's in the spirit of good journalism to look into the extent to which they deserve this influence, and the character of the people involved does matter.
One could say that the Mail also isn't a globalist paper and so that naturally sets their perspective against Snopes.