This question of mine, Which sci-fi book is this quote from?, was closed as a duplicate of this other question, What is Series Where There is an AI Born on the Solar System-Wide Network.
I can see why that happened: the answer to the two questions is the same (book 2 of Ender's Saga, Speaker for the Dead). But my question is not a duplicate of the other one. In fact, reading that other question and answer before asking my question would have had no impact, as I would not have realized that it was that book I was looking for. (I didn't even know that the "girl" character in the quote I remembered was an AI!)
So why was my question considered a duplicate?