I had one embarrassing experience with Wikipedia in my other life as a political reporter.
Back in 2008, I had an interview with then U.S. Rep. Rahm Emanuel, who was doing a fund-raiser for a local Congressman. (This of course was before he was Obama's chief of staff or mayor of Chicago.
Before the interview, I read Emanuel's Wikipedia entry just to get some basic facts. Here's one of those "facts":
"He was in a one-man Klezmer band called Rahmbunctious Eman."
How could I not ask him about that? It had a linked footnote and everything.
So I asked. And he looked at me like I was crazy.
"No," he said.
According to the footnote in Wikipedia, the klezmer claim supposedly was in a 2005 Rolling Stone profile. However, looking over the article afterwards, there's nothing about Rahmbunctious Eman or Rahm Emanuel in that article.
The line in Wikipedia had disappeared by the next day.
G. Wood said:
Yeah, anybody can, but they have hordes of no-no volunteers whose hobby is finding articles to recommend for deletion.
James Porter said:
Hell, I didn't even know it took much to get on Wikipedia in the first place. Can't anybody just write anything? Most Wiki articles I see have some outlandishly wrong factoid in the first place!