As many people know, Google has been sending out a number of unnatural link notices, which often contain up to three sample unnatural links. DMOZ.org has been referenced along with a couple other cases where people are screaming foul. In the case of the DMOZ.org listing that was reported as unnatural, John Mueller of Google joined the conversation at https://plus.google.com/111696587332859976219/posts/G8f9VZcZu5g
(August 20, 2013) and noted that it was a “mistake.” John Mueller also noted that other unnatural links likely exist and the webmaster should first look into those before submitting a reconsideration request.
The other two cases involve references to an allegedly natural link include the following:
Someone who wrote a tutorial about an app and linked to the app author’s website, as can be viewed at http://www.webmasterworld.com/google/4609765.htm
(September 14, 2013).
Someone who wrote about recycling furniture and how it can help reduce deforestation at https://productforums.google.com/forum/?hl=en#!topic/webmasters/FseaRU0C-90
(August 28, 2013) happened to link to a furniture company’s website that was donating money to an animal charity.
The sample links that Google displays in unnatural link warnings may not be unnatural at all, as was confirmed by John Mueller of Google. This added confusion leads many to believe that every sample link Google provides in such notices are from specific industries or platforms that are frowned upon by Google, whether it be from a blog, directory, forum or anything else for that matter.