Great write up.
I'll share that I originally created a steemit account under my Reddit account. Then I wanted to change my username so I tried to create another steemit account under that same Reddit account. Of course, I saw the error that said I couldn't do that, but then I just went ahead and created the account anyway and it worked. So I'm not sure if that is by design or if there was a bug that allowed me to do that. I can only assume that I now have two steemit accounts linked to the same Reddit account OR my second steemit account is not actually linked to my Reddit account.