Sadly, you often look like a killjoy if you respond with a Snopes link discrediting someone's shared image. And even if something's retracted, it's too late - t

Sadly, you often look like a killjoy if you respond with a Snopes link discrediting someone's shared image. And even if something's retracted, it's too late - the disinformation is out there. Could something like Slashdot's meta-moderation ever be applied? In that case, you judged moderation anonymously. Is spouting non-defamatory lies or exaggerated information free speech?