We take time because first we don't understand the question, then after we understand the question we don't know the answer.
Erel created B4A so he knows it inside and out.. and he understands the question because it is about B4A that he knows very well.
Most Questions are not only about B4A but additionally about Java, Android, iOS, HTTP, Sockets, UI, WebServices, ...
My theory:
He is an alien that has the ability to clone himself. So there are always several instances of Erel answering questions and coding in C#, Objective C, Java and Basic.
Let's wait and see if I'm correct if he one day creates several Posts in the same second.