Long-term Wikipedia vandalism exposed: "No, I think the fault here lies ultimately with the structure of Wikipedia itself. The website's openness both allows an enormous amount of vandalism to filter through every day, not all of which can be removed within minutes, and relies on ordinary people to catch hoaxes like this and remove them."
Indeed, that is one of Wikipedia's largest faults. Open editing got Wikipedia to where it is today, but left unchecked it will take Wikipedia to where it is going tomorrow: the occasional jewel of a good article, surrounded by a mix of mediocre topsoil and outright stinky crap, like the nonsense in the article referenced in the article above.
Open editing may be a good way to start an encyclopedia, but I am starting to think that it is not a good way to finish one.