[threeseed]

> I do not want Facebook acting as some sort of arbiter of what information is truthful

Facebook isn't the arbiter. Their users are.

And if a substantial percentage deem a website to be untrustworthy then Facebook simply won't display it as often.

[emodendroket]

Well, sort of. The votes give them raw material but interpreting the results and then demoting content is Facebook's job (and almost certainly nobody will be able to see how they do it). And getting demoted by Facebook, Twitter, and Google (all of which are involved in similar initiatives that mostly serve to demote independent news sources) makes a huge difference in our increasingly monopolistic media landscape where those platforms are how many people get their news.

[NoGravitas]

“I consider it completely unimportant who in the party will vote, or how; but what is extraordinarily important is this — who will count the votes, and how.” - Stalin (though the sentiment was not original to him. Variations on the same theme have been recorded as far back as 1880, at least).