Actually, I think I have it figured: They can't combine stats for a blog and its mirror. Most of my activity goes to duntemann.com, and it's unclear how well they can track that, given that the blog is pure HTML and not on a blogging server. My LJ mirror is fairly new, and while I'm sure it gets read, I'm also sure it doesn't get read by 12,000 people a month.

Crazy business.