People get trashed on social media all the time, whether for petty things or serious issues, so it's nothing short of new news. It's not a nice way to go about talking about people behind their backs since some people have social media friends in the hundreds or more, if you have to get something off your chest regarding another human I would do so around family or around good friends you can trust. Even then, trash-talking is never that much of a productive way to go talking about people. Some people may deserve it, sure, but I suppose the point is to vent your inner disgust towards that person to a group of people to make you feel better. People used to trash talk me all the time whether to my face or behind my back in school just because I was the shy type that talked little to none to my peers.