Did these people do any fact checking? I just ran another test:

visit http://sfbay.craigslist.org/bia/

spot ad for a kids Giant MTX 250 bike http://sfbay.craigslist.org/nby/bik/3189980073.html

perform a google search for the same thing http://www.google.com/search?q=site%3Acraigslist.org+giant+m...

result number two in the set is that posting, with the following summary:

Giant MTX 250 Kid's Mountain Bike sfbay.craigslist.org/nby/bik/3189980073.html 4 minutes ago ... Giant kid sized hardtail mountain bike for sale. It is a 21 speed, and it has front suspension. The bike was always taken care of, and is in perfect ...

"4 minutes ago" tells me Google is having no problems hitting craigslist.