Yahoo may be playing fast and loose with its own Search Content Quality Guidelines.
The first thumbnail on the left is what you will see if you are surfing as a normal user. will The thumbnail on the right, http://autos.yahoo.com/used-cars/forsale.html, is what you see if you are crawling as Slurp.
I love it. Too bad they still aren’t on Google’s first page of results for ‘used cars’! Maybe they should