It's in your 'Three Worst Pieces of Writing Advice Floating Around on Medium' piece. First paragraph, the word 'Medium' in the phrase 'Unlock the secrets of Medium...'
Not gonna lie - I get a lot of humor out of the fact that private messaging on Medium is basically the equivalent of a treasure hunt. I know it wasn't their intent but it adds a layer of intrigue to social media that I think we need more of. Can you picture on FB if you had to hunt through your friend's timeline to find messages they left you?
:-D