indyank - 8:01 am on Dec 23, 2012 (gmt 0)

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

If the spammy links were created by some spammer, should one use the disavow tool? The above quote actually seem to assume/imply that anyone using this tool is doing so because he was at fault in building those links.

Google is anyway supposed to be disregarding those link credits, isn't it? So how is this tool helping really for a penguin affected site? I can understand that it will help in case of a penalty.

so I really don't understand the need for using disavow tool for a penguin scenario, as explained in that blog post.