You get a good upvote for that great comment... I mirror your thoughts on the possibility of not knowing that @billybobbuddy might be a great high school friend and no one would be the wiser, that being said I think we are partly to blame.. but just a little bit..
What do I mean by that? Well a lot of Steemians act outside of Steemit like secret agents, they don't tell people about the website, some do, but most don't. Why? I had a friend (who I invited) tell me... well, if it gets too popular then It will be to late for me, I gotta grow my holdings first... In his case, I felt almost obligated to have one of those come to jesus conversations, and I think he got it... I think.
But honestly, if we believe in the potential of this platform, why not share? why not invite a good friend, or two, or three? It's work... but I think bringing your own wolf pack puts you leaps ahead of the game.
Why thank you. You can have my not so big but just as awesome upvote too 😁 I think you are correct that it is like a bit of a secret society. The more we reduce that the better our communities can grow and we can help each other.