This proceeding is not the only one of its kind. There are many examples in several countries and from different social networks like You tube and Facebook. We have to ask what is the borders of freedom of expression and infringement of privacy or insult juristically. Also it has to be asked in reality the social networks innocent totally.
Evidently, there are no differences between cyber-world and the real world in terms of legal responsibility but somehow people tend to act devil-may-care attitude. It is psychological from my standpoint. It resembles the attitude to use credit card instead cash. People use credit cards more carelessly. Also people cares and differentiates what and how they speak in friend and formal areas. They announce their expressions careful. Social media is not only a circle of friends but also a publicly "medium". Under this terms the "140 characters" might return to criminal offense.