It could be to explain something, or maybe to express something, or just to get their story out into the open.
There are many ethical issues, social media sites like Facebook collect data on thier on users even when the user isn't on thier app or website, people post really stupid things that could get them in trouble with thier school or even the law. There are many privacy concerns with these social media platforms, social media platforms are able to record ur gps coordinates, they can gather data on ur ip address and your phone comtacts.
You should not look at a screen for more than an hour.
1.It coulkd ruin your eyes
2.You could read..A screen is not helping your brain
3 You need use your brain! Go outside read a book study or something!