Facebook's actions keep being cast as if there is a completely open, level, neutral field that the censorious fact checkers are now distorting. But that's not the starting point. Facebook already has its thumb -- if not both hands and an elbow! -- on the scale, as far as what content is dispersed. The view is distorted to begin with, by Facebook choosing what is promoted and what is not.

They may not be doing a particularly good job un-distorting it, but it's not a choice between pure and free exchange of information and censorship. It is between whether Facebook is going to manipulate in both directions -- promoting and taking down -- or just one.

(Note that I don't think either of these choices are particularly good. I would prefer that Facebook did neither.)