When I read "who you know" in the real world it usually means that you have some connection to an established source of power who isn't available to everyone. My mother-in-law's friend the Supreme Court Justice, my dad's friend the bank executive, and so on.
On Steemit it's more about who you can get to know. I've found so many people here who are actively looking to form relationships with people they never heard of yesterday. That may not last as the user base grows, but all the more reason to make the most of it now.
This is right. It is pretty amazing really considering the platform type and money invested here that we can still meet almost anyone. Of course, there is the abusers who DM, memo and rub the big names at every opportunity too...
You are very right