Useless? No way Jose! But you're probably right in that lots of people today have to be lead by the hand and on their own can't get from good technical information to how to apply the information in the real world. Sharp people learn boatloads of "how to do" from that web site. A good understanding of the technical & artistic fundamentals forms the foundation that supports the ability to consistently make good photographs. Anyone lacking a good understanding of the technical aspects of doing photography won't be able to consistently make good photographs.