No specific examples come to mind right now.

I'm speaking more generally of how people will often associate their own unique interpretation of a book with the book itself, as though that was the intended purpose of the book.

If it wasn't intended, isn't that more a reflection of the reader's own mind rather than the author's? To me it just seems wrong to praise the book or the author for helping me achieve that perspective when it was more a result of my own critical analysis.