i think we all come here to share our knowledge. its our own willingness to share that brought us here. if somebody personally comes to you and seek advice you will surely take patience on him. if again, he comes, will you turn him down, since you already adviced him. if he seek advice on another person, will that person turn him down also because he already went to you?
i was always told that the best way to understand a book is read them, when you don't understand read it again, and again and again. until you truely grasp what's it tries to say.
same situation with op's they need concrete understanding.