Hi,
I think you maybe misunderstood Wim. He was not saying you should not email him or post here or that your question is stupid, he probably meant you should have used one or the other. You have to understand he is very busy so it might get confusing when he sees the same questions at several places and then has to reply to email and answer on forum.
But it is of course ok to ask here and the advantage of asking here is that sometimes other people will be able to answer your questions and save (in this case Wim) time.