Neil Patel at Pronet Advertising wrote an expose on titled Digg is Censoring Content by Burying Stories Internally. The expose delved on how Digg is using unseen and unamed moderators to bury content. The real problem is they are "blaming" it on their users, which unfortunately for Digg, doesn't corroborate with the data they are publishing Digg is Censoring Content by Burying Stories Internally.

Patel wrote:
We all know that the main reason why stories don't hit the Digg homepage is because they get buried. Some say the buries are caused by specific Digg users who have it out for us while others just blame it on the content saying it wasn't Digg worthy. Well last week we did a test on Pronet Advertising that shows Digg might be burying stories internally.

You probably think users buried the story, but it actually was one of the Digg employees who buried it or an algorithm that is targeting specific content topics/sites. If you don't believe me, here is a document that contains 10,000 buries from that day and none of them seem to be buries for the I'm in like with You story.

If you are to conduct your own investigation, you would also yield same findings...