I’ve seen a couple of cases which “Snopes” has gotten wrong; he’s not infallable.
Getting something wrong is one thing. Actually, reporting that you contacted the supposed author who denied writing it...well, that would be something else entirely. Not sure Snopes would go that far. And to what end would they do that? They provide links to where they think it originated.
I don't disagree with what it says. I have a problem with it because someone has apparently attributed it to someone else who says he didn't write it.