Robert_Charlton - 1:53 pm on Dec 14, 2013 (gmt 0)
Sorry, not pointing but used adult keywords (anchor text) to link to the site.
As I was reading this, my reaction was the same as Shepherd's and Shai's... this has all the symptoms of a hacked site... or sites. While I see a lot of editorializing on this thread about what Google ought to do, there's very little discussion about what the webmaster of a hacked site should be doing, and what Google has been trying to do, and how webmasters can prevent this kind of stuff from happening.
Here's a thread that is probably as good as any as a place to start...
Understanding hacked sites that rank in Google
Note my comments in the discussion, and check out Matt's blog on the topic and the Google resources he refers to. My emphasis added on the last sentence...
Definitely read this Matt Cutts blog post on the problem....
Example email to a hacked site
April 27, 2012
As Matt notes in the blog post, Google can't install everybody's security patches for them. He does provide a list of resources Google has created to help.
Also, it's very likely that hackers have cloaked their changes to your site so that they're invisible to you, but they are served up to Googlebot. View your site as Googlebot would see it, using a tool provided in WMT. As Matt explains...
If you visit a page like http://www.example.com/deep-url-path/ and donít see the pill links, that means the hackers are being extra-sneaky and only showing the spammy pill links to Google. We provide a free tool for that situation as well. Itís called "Fetch as Googlebot" and it lets you send Google to your website and will show you exactly what we see.
The usual victims of these hacks correspond pretty much to what the OP is describing here. I've posted in several threads on the topic. I describe the following in opengoogle, in Supporters [webmasterworld.com...] and I'll take the unusual step of quoting some of that in the public forum here...
Unfortunately, state and local government and non-profit organization sites generally aren't well-funded and are among the most naive about this, so site maintenance and security get neglected. Generally, the sites are hacked to sell pills or to provide a temporary infusion of link juice to sites that do.
I'm very curious whether this does turn out to be a hacked site. I can't promise that it will, but I think it's likely.