I can see your Facebook posts if your posts are marked public for the whole world. I've always made posts public online. That is kind of the point for me. I want people to see it. But yeah, Twitter can be more public than Twitter and YouTube even more. Beyond that, Steem is even more public than all of them. I love how Steem competes with Minds, Gab, Bitchute, http://1776Free.com is new, Real Video, etc. I prefer Dlive over Dtube.