The social media is just a part of the network society in which we are living now
Of course it has both positive and negative causes. Nowadays we have access to the biggest archieves of the information and some social media are posting really helpful and amusive stuff. But also social media can be a hotbead of all sorts of propaganda, hatred and different horrible things.
But as for me - a person can always choose for themselves.You can read about stydying or some sort of conspirology. And we can't say will it be good or bad for them