Makes sense. Then again, I think the more general explanation here is that social media removes the 'multiple faces' people put on for different situations. In real life, no one acts the same way towards their family, their friends, their colleagues, their boss, the police/government, random people on the street, etc. They say different things to different people based on whats socially acceptable in that situation.

Social media sites are like if everyone in the world could hear everything you said, without the necessary context to understand why you said it. They've unintentionally exposed the fact everyone has skeletons in the closet and that all kinds of disturbing things are said/done outside of the public view.