From what I know, Digg ban comes in three types, which is banning your site URL, your IP address or simply your Digg account. I started building links prolifically recently using various dofollow social bookmarking and social voting sites. Just three months after the campaign (which was quite good), I got myself banned from Digg (account ban). I don't just submit blog post of just one URL and my blogs ranges within three to four niches. Also, I do vote on stories. Why do I get the ban? Any experiences to share? Any tips on how not to get a ban from Digg? Thanks.
Digg users don't put up with any spam. It is a very tight social network, and articles need to be legitimate to stay. If you are posting something for affiliate links etc you will be banned very quickly, no question about it.
i got ban to before i think for asking people to digg my sites i dont do that anymore or submitt low quality sites or spammy sites.