Nice article.
As long as people not understand "how the money is coming" it will be a challenge to increase the amount of registered (adult) users.
But there a lot of FB users who can not write a Word document, so my opinion is that Steemit has a long way to improve the privacy if ever to compare with Instagram / FB. You can read every article here and see all the wallets without any login at all.
RE: Can Steemit take on Facebook?