I have some of my past Bible studies I have done for myself on various topics (baptism, Calvinism, spiritual gifts, end times, etc) saved. When I post something rather long, that's where it comes from. I have temporarily saved an answer or two before because certain questions come up ALOT.
I don't copy and paste other sources; I give the website instead.
Well I don't know about others but some questions I look up stuff to help me answer questions. If you are referring to the previous question of Lot's wife turning into a pillar of salt it didn't take long to look up something on it and then all one has to do is copy and paste. So no it didn't take long to answer that one. Some people are also more knowledgeable about certain areas and can answer those questions quicker than others.
i know, i'm amazed... maybe they are that good, who knows, I have to go look in my Bible to find the verse, or make sure I know what they are saying. for me my goal isn't to have the most best answers or to answer first, it's to give them what will truly help them.