If Zuck thinks it has no effect, then he is not reading posts. I have idiot friends repost these fake stories as fact. Then other idiot friends say "Wow! I didn't know that" - no one checks any fact check site. They usually don't even read the fake article, just the headline. And if you point out it is fake, they are convinced that all the fact check sites are run by the liberal media.
Is Zuck naive, or just protecting his baby from being called ugly?
People are sheep. Feed them enough BS often enough, and believe it regardless of facts. Global warming is myth. Freeing all the carbon sequestered for millions of years, can't be bad.