One big issue is, that people generally do not understand, or are simply not aware, and think that the Rules of Publishing and the Laws associated with same, don't apply to what they Publish on Social Media; secondly when taken to task (and it has happened) rarely does that story ever get a run in the main stream Media, hence the masses remain cocooned, feeling safe in their ignorance, publishing all sorts of stuff, on Social Media.
One day someone with knowledge, attitude and the wherewithal, will take very serious action, and it will be reported in the main stream: (sadly) though, the offender who is hung out to dry, likely will not deserve the consequences of their action.
WW