Not to nit, but communities like reddit aren't really following "wisdom of crowds" model anymore, as outlined in the book. To truly obtain wisdom from the crow

Not to nit, but communities like reddit aren't really following "wisdom of crowds" model anymore, as outlined in the book. To truly obtain wisdom from the crowd, it has to be collected: a) non-sequentially (i.e. all votes are cast independently of what everyone else cast) b) taken from wide cross-section of the population. Once a community has formed around particular topics (far left politics, atheism, xkcd, "vote up if ...") you may be collecting wisdom of _that_ crowd but not wisdom applicable to anyone beyond that select group.