Parent shaming: The new social media trend

They name call. They bash. They judge. Many times, they don't know the person, the situation, or all of the details. But, that doesn't stop them. I'm talking about social media blamers and shamers. I call them cowards.
What leads them to spread hateful messages? Maybe it's because they can hide behind the keyboard. Maybe they are insecure, jealous or scared. But, whatever the reason, they are nasty.