This review from the Chronicle Review on August 31, 2009 by Geoffrey Nunberg brings to light some of the problems of re-publishing works without metadata, or to be exact, sloppy and incorrect metadata. It also points out the problem with depending solely on automated processes.
While many web users focus on the idea more than on when an idea was published or it's author, scholars need to know the truth. There is a useful comment on this review by John Wilkin, Executive Director of the Hathi Trust.
The review is at http://chronicle.com/article/Googles-Book-Search-A/48245/. Auraria Library users who are off campus will need the information at this link to see the article.