Via Marshall Fuss in alt.coffee (on Usenet), an article in The Onion finds that the majority of human discourse now occurs in online product reviews.
‘Duke sociology professor and study head Dr. Allan Piersall’ said, inter alia:
bq. “Not only was I impressed by the large number of people expressing themselves through the written word, but I was amazed by the sophistication of the rhetoric,” Piersall said. “In the same review, I saw examples of parallel construction, metaphor, and tautology, as well as standard debate devices like propositions of policy and use of evidenceall to support the argument that the Krups 872-42 Bravo Plus Espresso Maker is not worth the money.”