You are bloody hungry and enter a restaurant. The waiter at the entrance thrusts a form at your face. You must enter your name, address and phone number before you can order any food.
Websites are restaurants of the net.
You are hungry for information. You bring out your credit card only when you pay the bill. A website should ask your credit card only when you are buying its product. The Net is not for big boys to make more money. It is for small boys to become self-sufficient.