I received an impressive spam a while ago. It was a comment to my SQLObject post a while back, telling me “Have you tried Ruby language? It has quite good database object system.” Not a bad comment, taken by itself. But the poster’s submitted website was clearly some search engine optimization type spam site. I’m still not sure if the spam message was generated automatically or by human. But it does give me nightmarish vision of separating ham from spam in a post-turing-test world.