(This is a long article, but I think it's interesting enough to quote the relevant parts in full.)
From http://www.edge.org/documents/archive/edge252.html#pesce "Hyperpolitics (American style)":
"This shows up, at its most complete, in Wikipedia, which (warts and all) represents the first attempt to survey and capture the knowledge of the entire human race, rather than only its scientific and academic elites. A project of the mob, for the mob, and by the mob, Wikipedia is the mob rule of factual knowledge. Its phenomenal success demonstrates beyond all doubt how the calculus of civilization has shifted away from its Liberal basis. In Liberalism, knowledge is a scarce resource, managed by elites: the more scarce knowledge is, the more highly valued that knowledge, and the elites which conserve it. Wikipedia turns that assertion inside out: the more something is shared the more valuable it becomes. These newly disproportionate returns on the investment in altruism now trump the 'virtue of selfishness.'
Paradoxically, Wikipedia is not at all democratic, nor is it actually transparent, though it gives the appearance of both. Investigations conducted by The Register in the UK and other media outlets have shown that the "encyclopedia anyone can edit" is, in fact, tightly regulated by a close network of hyperconnected peers, the "Wikipedians."
This premise is borne out by the unpleasant fact that article submissions to Wikipedia are being rejected at an ever-increasing rate. Wikipedia's growth has slowed, and may someday grind to a halt, not because it has somehow encompassed the totality of human knowledge, but because it is the front line of a new kind of warfare, a battle both semantic and civilizational. In this battle, we can see the tracings of hyperpolitics, the politics of era of hyperconnectivity.
To outsiders like myself, who critique their increasingly draconian behavior, Wikipedians have a simple response: "We are holding the line against chaos." Wikipedians honestly believe that, in keeping Wikipedia from such effluvia as endless articles on anime characters, or biographies of living persons deemed "insufficiently notable," they keep their resource "pure." This is an essentially conservative impulse, as befits the temperament of a community of individuals who are, at heart, librarians and archivists.
The mechanisms through which this purity is maintained, however, are hardly conservative.
Hyperconnected, the Wikipedians create "sock puppet" personae to argue their points on discussion pages, using back-channel, non-transparent communications with other Wikipedians to amass the support (both numerically and rhetorically) to enforce their dictates. Those who attempt to counter the fixed opinion of any network of Wikipedians encounter a buzz-saw of defiance, and, almost invariably, withdraw in defeat.
Now that this 'Great Game' has been exposed, hypermimesis comes into play. The next time an individual or community gets knocked back, they have an option: they can choose to "go nuclear" on Wikipedia, using the tools of hyperconnectivity to generate such a storm of protest, from so many angles of attack, that the Wikipedians find themselves overwhelmed, backed into the buzz-saw of their own creation.
This will probably engender even more conservative reaction from the Wikipedians, until, in fairly short order, the most vital center of human knowledge creation in the history of our species becomes entirely fossilized.
Or, just possibly, Wikipedians will bow to the inevitable, embrace the chaos, and find a way to make it work."
-- gwern Propaganda Security rip CIO VIP Pershing O/S MPRI JASON AMEMB