Valid point, Beags.
There is of course the counter-argument that publicising how easy it is to Wardrive raises security awareness by highlighting the risks to the uninitiated.
Too many in the WiFi domain suffer from the 'ignorance is bliss' syndrome when it comes to security.
Better they find out from posts such as IO540's on here just how vulnerable they potentially are: they can then take steps to counter the threat before they suffer the consequences of their lack of security.
btw - tools such as Netstumbler are very useful for ensuring the integrity of your own network.
TOG