I still think these posts are only trying to build link farms. The first results in google when you search for foot pains are pretty suspect too.
This reminds me.. its pretty damn near impossible to tell nowadays whether a search result leads you to a legit online shop or a scam-shop. I have even given up searching products of any kind on google (not just on google, search engines in general) (unless its highly specific stuff and I look for reviews)
What google needs is a another rating besides page rank. a Trust rating.
Which is community sourced and links to a small sub-page with comments for a search result. That way you could see "comments" on search results IN the search... why google doesn't do that yet is beyond me.