Because when you use the search feature, you not only get the answer to your question answered, but there's usually enough information to get your follow-up questions answered as well.
Consider...what if the one person who had expert advice and experience with your question is not on today...or this week. Then your question gets swallowed up, or gets answered by people with more opinions than brains.
I would personally go back and read the previous 6 months posts in each category. No..not all, but by reading the topic, you can gain a lot of useful information on your future mods and troubles.
Oh...BTW...Demon, Kyser, Warmonger, Bnoon (and some others I've left out) are the experts of contours. You might want to listen to them...
