This is classic Craigslist foolishness.
There's a guy on my local CL who keeps listing a nondescript low-end 80's road bike as a P14 Schwinn Paramount, even though I've contacted him and let him know there is no way his bike is a Paramount:
http://phoenix.craigslist.org/nph/bik/1876653511.html
There really is no cure for (a) stupid, or (b) willful ignorance.