Which may be a good thing. What if Facebook harvests enough data that the "spam" we get is low in quantity and with very high probability it's something we actu

Which may be a good thing. What if Facebook harvests enough data that the "spam" we get is low in quantity and with very high probability it's something we actually want, as that price requires? If ultra-targeted advertising becomes viable as a model for Facebook, it'd be much less of a nuisance than just shoving ads in users' faces all the time. Value-added, even- it's reliably connecting users with markets they'd voluntarily participate in.