The problem is, "breaking" the Diggbar can screw up traffic stats too. It will either result in an additional, invalid pageview, or mess up referrer stats. We've elected to add a target="_blank" to all our links when we detect a frame around our content. The Diggbar will stay for the first pageview, but be gone for the second. And our stats are basically correct. We still see Digg as the referrer, we track the right…
Oh, and I meant target="_top", doh.