'In the context of Digg, I class blogspam as a post that just...'
From the comments on 'There's a fine line between blogspam and self-submission'
In the context of Digg, I class blogspam as a post that just links to another and regurgitates present content with little or nothing original. The Gawker network is my prime pet-hate when they take other people's content and get the traffic from it. They even cross-link and some of those posts make the frontpage.
They just have enough of their own userbase to push things onto the frontpage.
I don't have any issue with people posting their own stuff. Digg will sort the good from the bad.