Thought on "Wikipedia Scanner"

According to an NPR article posted August 16, 2007, "Wikipedia calls itself 'the free encyclopedia that anyone can edit,' which is another way of saying it is not fact-checked. Or spin-checked, for that matter." Anyone can edit, add, or delete information posted on Wikipedia and do so anonymously. However, a graduate student at the California Institute of Technology, Virgil Griffith, has created a tool to track the location of changes made to Wikipedia. It is called the Wikipedia Scanner.
A Wired article, by John Borland, said that Griffith created the scanner because he became curious about Wikipedia edits when it was reported that "congress members 'offices had been editing their own entries" and he "wanted to know whether big companies and other organizations were doing things in a similarly self-interested vein." NPR and Wired noted several companies' Wikipedia articles which had been edited from computers owned by those companies.
I wonder if, since everyone knows that information can be edited or even deleted from Wikipedia, it is important to know the source of edits. What if the original content was erroneous? Are we just as interested in the source of information posted to harm an image?
I think it is also important to remember that the use of terminology and adjectives is subjective to the perspective of the individual providing the information. Subject matter should be considered when using Wikipedia because, as NPR stated, "the company or the band you're researching is likely to have enhanced or polished its Wikipedia image" or negative information could also be posted by someone who has opposing views.
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