Ranking of edit in Wikipedia

The researchers at Oxford University have clarified which page is most frequently edited in Wikipedia.

News.com.au: Edit wars; Wikipedia’s most controversial topics

According to this report, the 5 most controversial topics in English are below: George W. Bush, Anarchism, Muhammad, List of World Wrestling Entertainment, Inc Employees, and Global warming. Circumcision, United States, Jesus, Race and intelligence, and Christianity are subsequent.

As Wikipedia in English is world famous and utilized almost all over the world, the result suggests that these topics are widely discussed. Indeed, Mr. George W. Bush is strongly criticized for his decision of attacking Iraq. His position in the history of the USA will not be determined for some time. Until then, the battle of editing will be continued.

Religious issues are also likely to be under discussion. We haven't completed the biography of Jesus Christ yet.

The relationship between race and intelligence is also a sensitive issue. I am interested in this riddle as far as an academic concern. But I am afraid that the researcher who reached the conclusion would be outraged from both racists and equalitarians.

By the way, which words are hot in Japan?
A blogger investigated about the pages which are frequently edited. The result is below: [New Japan Pro Wrestling, an association], [Gate: Self Defense Force fought on the battlefield, a fantasy novel], [Valvrave the Liberator, an animation], [Amachan, a TV program], and [Kraftwerk, a German music group].

What a hell! I know none of them. To begin with, they are all the contents belong to subculture. Do Japanese people never talk about politics, instead of animation?

No, it is not true.
Wikipedia in English is a world estate. Innumerable people are editing from time to time. Therefore, universal topics are more frequently rewritten than local topics. In contrary, Japanese Wikipedia is almost only watched by Japanese (or foreign people who are interested in Japan culture). Moreover, few people are fond of editing Wikipedia in Japan. After all, editors in Japanese are quite limited. Therefore, the hot topics are influenced by the concern of the editors at the point.
In conclusion, this result is quite occasional, I think.