It's some of the above in certain situations, it's none in others, it's all in some. Everyone is different. Just like life, different people operate differently, are wired differently and use tools and resources for vastly different outlets and reasons.
I generally avoid mass anything, chain anything (except drinking before), marking ones self safe. I love to write, but my attention span is so short that social media provided me a personal outlet to write, to entertain, and to network. My mother always told me "Strangers are just friends your haven't met yet" I've made some really close connections with people online first, and then in person. A few are even on this board.