Looking at the site in question, it has been affected by Google's Panda, so our algorithms don't think it's a very high-quality site and that has affected the s

Looking at the site in question, it has been affected by Google's Panda, so our algorithms don't think it's a very high-quality site and that has affected the site's rankings in Google's index, at least. Personally, I would look to add more value than the article described. And of course if you're looking to buy a site, whether on Flippa or elsewhere, you'll want to ask about any recent webspam action notifications from Google, as well as ask about any traffic trends in case the traffic to the site has gone down recently.