But why would my brand-new site be in the default Opera feeds?
The only thing I did was to click on my site's feed link once. I never subscribed to it, nor do I plan to... And it's not showing up in any of the default sources (or 'My Sources'), of course.
Does anyone else have a website with a discoverable feed link? Can you check your Apache logs and tell me if you get regular feed hits from your own browser..?