From a review by Jeffrey Beall of a presentation by Eric Hellman at ALA Annual 2011 that touched upon that:
Hellman's talk was among the most arrogant and flippant I had ever attended at an ALA conference. His talk was supposed to be about linked data, but he exploited his position as speaker to unwarrantedly trash libraries, library standards, and librarians.
By way of GMANE, you can read what the folks at AUTOCAT had to say in discussing the matter further. Links to the slides used are also discussed in that AUTOCAT thread.