Soren Kierkegaard wrote that truth can not be found in a crowd. (The actual quote was “untruth is the crowd” as I recall.) An interesting article at Cosmos asks the question and looks at the community info site. A commenter below the article notes that perhaps requiring editor to a Wiki to use their real names and supply a valid email address is a positive step towards establishing a bit of credibility to Wikipedia. I have to agree. Being one of many in a crowd allows for nonsnese. But, having to stand by your words… that’s something else entirely.
