spam
Mollom to the rescue!
The day came when Awstats reported 300 visits / day and Google Analytics reported just a couple of visits / day. So, what's happening? Well, not much except for the 3000 comments on http://jonas.granvik.me/blog/eclipse-user-variable. There sure are lots of people interested in Eclipse variables...
I removed the spam with DB queries directly, since Drupal's default interface for removing comments is quite ineffective for large quantities. The next day, again, the comments were flooded with spam.