Was all Wikipedia written before 2008?
Here is an example of the charts I mentioned in my last post. Most of the growth in the article about The Book of Laughter and Forgetting (Milan Kundera) was before February 2008. And the majority of edits (around February 2008) were by a single account. Lest we be seduced by the argument that the article has reached some sort of perfect or equilibrium state, note part seven: “The Border” has the tag “This section is empty. You can help by adding to it”, added in January 2011, and not addressed since.
Consider further that the article is only 10kb, which is small compared to a Wikipedia article of any substance, and is fantastically minute compared to the extraordinary List of My Little Pony characters, weighing in at 180k. At least 'My Little Pony' has bucked the trend. Editing picked up considerably in 2011.