The digital world is said to be "virtual", but the people here are real... so are their emotions... Where there is some kind of interpersonal communication, attachment is inevitable. In this world you can find certain things that you find in your actual life... Chats, friendship, infatuation, love, fights, break ups...
Virtual relationships can be just as firm or as fragile... and virtual break ups can be as painful as those in real life...
We are not robots or machines. We are driven by emotions...charged by encouragement, and rejuvenated by acclaim and appreciation... ☺ It's this quick communication that makes social media that much more desirable.
Some of us are gregarious... Some are loners in their real life... Surprisingly, social sites have a large number of such complete loners, i. e. people who are very much active on social media despite being very private individuals in their daily life.
Social media is a drug(not necessarily psychotropic). Writing apps in particular are highly addictive.
When you say, "Addiction is addiction. ", you also consider "deaddiction..." The best remedy to overcome this addiction is to minimise one's involvement in terms of time spent...and That's tough.
(Sexual harassment and stalking are not included here. They merit an independent article).