It's a total nonsense. How can you assure that nobody submitting your pages in digg. If you promote your pages it may fall under the TOS. Google is going mad?
I run a blog with adsense on it. Its a blog about Computer Technology and I have adsense on the page and I digg every post I write. I've never had a problem with Google saying anything. Even in the email above they just say your responsible for any invalid clicks...thats fine with me as the traffic I get from digg is phenomenal. I've grown a big reader base and the only way I advertise that particular blog is through digg.com
If only people on DP could or would try to read seems many still did not read your original post.... Anyway, you cannot remove links from the search engines database that I know of. Peace ======================================================== Having literacy problems??? [SIZE=-1]www.nifl.gov[/SIZE]