We have been struggling with Panda since its first interaction in February with no results. 2 reconsideration requests failed with senseless messages in WMT. After the last Panda update we got the notice "detected unnatural links" in WMT.
We cleaned up some links pointing to the affected site from 3 of our own domains and submitted another (3rd) request.
This time the reply came sooner and straight through our site's contact form:
Hello,
Thank you for your request.
We know that perhaps not every link can be cleaned up, but we need to see a substantial effort to remove the links, and this effort should result in a decrease in the number of bad links that we see. Once you are confident that you have done everything you can to remove these links, please reply to this email with the details of your clean-up effort.
Sincerely,
The Google Search Quality Team
Due to the fact that this domain dates back to 2004, it gained thousands of links and it was difficult to go through each one. We still had to do it and "Bingo", we found a spam attack from more than 150 low quality article directories registered in mid 2010 under one name!
In January 2009 we submitted 10 different articles to Articlesbase and Ezinearticles (these are reliable article directories with editorial staff who review submitted content for quality)
And now we see our articles on those spam directories who took content from Articlesbase and Ezine. Of course nobody responded when we tried emailing them 3 times.
I responded to this message explaining everything ( as seen on those spam sites, articles were submitted Jan 2009 but the domains were created in mid 2010).
Still waiting for the reply from Google.
Possible fix.
Those articles have links to 2 different pages, so I was thinking to change the URLs of these pages without 301 redirect and delete the old ones from index. I know we will drop many many other natural links but to save the whole site we can easily do it.
Has anyone fixed similar issue due to link attack by removing the linked pages?