MY ANSWERS

1: I would agree that some social media sites are just opportunities for unpaid shaming interns as i have seen and heard similar stories like Justine Sacco and it makes me not want to go onto them as its always a negative vibe.
2: Social media is a good way to get your own view across and make people who may not be aware of an activity which is happening as the media are not showing it. For example I was not aware that the Amazon Rainforest was on fire until a friend who was on twitter told me that it had been burning for 3 days this was a great way for people to show how they felt about a just cause but when people start attacking each other I do'nt think this is very positive for peoples mental health.
3: I don't feel that it is easy to find nice people like us on some social media sites i.e twitter as people seem to be more negative or harsh when they are not talking to the person face to face.