Probably an unpopular or old fashioned opinion, but I think it takes a certain amount of narcissism or self-unawareness to post regular selfies, to write about one's life, family and sex life, reveal oneself (unintentionally to some degree) and still expect the world to hold the same impression you want others to hold of you. To my mind, IK holds this in SPADES, really an archetype of this group.
There's something about being an opinion writer, you have to be certain that not only is your story or opinion so important that the world/readership must hear it but that it's also worth a(n inflated) salary.
As an introvert, this extrinsic motivation/validation is absolutely alien. I read somewhere a good while ago that those of us on internet forums are mostly introverts, so we choose to remain anonymous when others (Twitterati) can't fathom it or think it should be outlawed. But then, as introverts, we're not seeking external validation in the same way and don't expect to be paid for what we write in terms of money or reputation.
One can't put these personal stories on the public sphere, on a medium that never forgets and not expect the public to have receipts and, in some cases form an undesirable opinion based on them.