Finally, quantity matters. If only a couple of reviews seem especially positive or negative, your spider sense should tingle. On the other hand, dozens or hundreds of reviews reduce the effects of self-interested postings.
Listen: the old-fashioned system of professional critics wasn’t foolproof, either. You never knew what conflict-of-interest shenanigans were at play. At least in the Web 2.0 world, the crowd’s voice generally drowns out the solo voices of the untrustworthy. You’re left with a pile of opinions that contains more truth than falsehood.
This article was originally published with the title Critical Mass.