This kind of service is great and technically well done. Of course it "should not be neccessary" if people exposed well-structured information in (X)HTML. Howev

This kind of service is great and technically well done. Of course it "should not be neccessary" if people exposed well-structured information in (X)HTML. However, many actors work hard to publish their valuable data only in a way they can control (for instance human-readable). Such API efforts are helpful to demonstrate that it is impossible to publish data and keep them fenced at the same time.