Do you do some housekeeping work on your Digg friends list? I know I do, in fact I just did. I used to have over 400 people in my friends list and I found that almost half are inactive. Many of them inactive since October 2008, some even further. So goodbye to them, no hard feelings.
One obvious benefit from keeping the list down is that it ensures that everyone gets a shout at. On the down site, removing so many from my friends list has made my fans list…bloated. Damn.