I'm just saying that if they sneak stuff into a novel that doesn't belong there (without saying they've done it), I won't be adding that novel to my collection.
That would apply to every novel containing an in-joke that's every been written. And most every fanfic, I suspect.
So if they do it and they tell you in the foreword, you won't buy it, and it they do it and they don't
tell you, you also
won't buy it?