What do we most want, as responsible, independent-minded researchers, out of an encyclopedia? Primarily, I think most of us want mainstream expert opinion stated clearly and accurately; but we don't want to ignore minority and popular views, either, precisely because we know that experts are sometimes wrong, even systematically wrong. We want well-agreed facts to be stated as such, but beyond that, we want to be able to consider the whole dialectical enchilada, so that we can make up our own minds for ourselves. (…) Involving both groups in a content production system has the best chance of faithfully representing the full spectrum of expression .To exclude the public is to put readers at the mercy of wrongheaded intellectual fads; and to exclude experts, or to fail to give them a special role in an encyclopedia project, is to risk getting expert opinion wrong.

LARRY SANGER, a co-founder of Wikipedia