Also, does it matter?

The point being made here is about the data LLMs have been trained with. Sure that contains questions&answers but obviously not all of it is in that form. Just like an encyclopedie contains answers without the questions. So imo specifying this as 'no-one asked this before' is irrelevant.

More interesting: did OP get a sensible answer to a question about data which definitely was not in the training set? (and indeed, how was this 'definitely' established'). Not that if the answer is 'yes' that'll prove 'thinking', as opposed to calling it e.g. advanced autocompletion, but it's a much better starting point.