In the internet, nothing is private. Before the "Nido.org" case happen, i used to have my real name in social media and my profile was public. But after that, i try to use pseudonyms in my profiles, and keep it private. I was scared because I didn't know if someone can get my personal information, like my addres, my passwords or something like that. I reflected about the internet. We don't know the real power that internet have, we can know everything about a person if the person don't take some safety precautions. 
Now in Instagram (my favorite social media) I don't use my real name, and in my profile I don't have personal data like the place where I study, the city where I live or even my age. 
I really like Instagram because the media platform format is dinamic and use photos for the post give the chance to people to being creative. I think even the artist are beneficiaries of Instagram, cause they can show his art and become famous.
But, I know Instagram can be dangerous if we post or show in our public profile some personal details.