I took that as an author's proofing note mistake. I often use XXX (highlighted in yellow so I can find them again) when I'm pursuing a chain of thought, am conf

I took that as an author's proofing note mistake. I often use XXX (highlighted in yellow so I can find them again) when I'm pursuing a chain of thought, am confident a specific example exists, but can't think of one right now. Most recent example was a paper I was writing on purchasing brand over product - I wrote about "buying a 'Rolex' over a XXX", where XXX later became "an Oyster Perpetual Milgauss" - my guess is the author meant to replace XXX with some global-warming concerned island nation, but forgot.