Social media is like a reality TV show in that we play a character who's sort of like us, but not really us. Maybe it's a more exaggerated version of ourselves (to seem edgy or outrageous), or maybe it's a toned-down version (to be neutral and inoffensive), but either way it's a character, not who we really are.
It's like we're all writing a roman �à clef, a thinly-disguised autobiography about ourselves. And living in it too.