jimbeetle - 5:52 pm on Dec 22, 2012 (gmt 0)

Google has never EVER implied the tool will do anything for PENGUIN problems

link [googlewebmastercentral.blogspot.com]

Q: Should I create a links file as a preventative measure even if I haven’t gotten a notification about unnatural links to my site? A: If your site was affected by the Penguin algorithm update and you believe it might be because you built spammy or low-quality links to your site, you may want to look at your site's backlinks and disavow links that are the result of link schemes that violate Google's guidelines.