The issue has been building up for a few weeks now. It’s taboo, of course, to discuss Digg.com in a negative light, but there have been “closed-door” secret meetings amongst diggers recently. Via GTalk, it’s a hot topic among active diggers.
A couple of weeks ago, Tamar Weinberg posted Why Nobody Should Buy Digg. It details some of the circumstances behind recent bannings and the apparent turnaround in how Digg handles them. In short, they don’t. If you’re banned, Digg won’t talk to you. They won’t talk to anyone else about you.