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The point is (in our days) always moderation. But there are good practices on it: do you know hypotheses.org? Its a french initiative for assembling researches in a solid wordpress platform. But there is a team of developers and supervisors to select and help the users.
Agora, eu sequer sabia que a USP possuia algo assim! De todo modo, quem sabe o modelo lá atrás era muito mais o do forum virtual fechado e menos oda rede social aberta.
