In the short essay Catching the Dreams Pat Hayes, editor of the RDF Model Theory draft, speaks out against those see Description Logics as the only foundation for the Semantic Web:

Using DLs as a semantic web content markup standard is a failure of imagination: it presumes that the Web is going to be something like a giant corporation, with the same requirements of predictability and provable performance. In fact (if the SW ever becomes a reality) it will be quite different from current industrial ontology practice in many ways. It will be far 'scruffier', for a start; people will use ingenious tricks to scrape partly-ill-formed content from ill-structured sources, and there is no point in trying to prevent them doing so, or tutting with disapproval.