For example on twitter. A lot of politician being mean to each other and doesn't respect the other politician opinion. They post things quickly without even thinking, I guess because it easy to type their thoughts than say it in person. They seems to act like a childish. They can't control their anger against their colleague in twitter or other social media.
I believe social media improves not only every ones daily lives in the way of communication but can also boost self confidence in a way where people feel like they can really be themselves and not feel pressure by society to act along with everyone else like a cow in a herd, don't be a follower be yourself