- The tracking-tags function transformed from a notification service to a subscription service - you can subscribe to my "fic: torchwood" tag and only my public (and/or protected) torchwood fic entries would show up on your reading page.

That would probably be my preference. And perhaps there could be some sort of mechanism attached to the tracking system by which the tracker could choose whether or not to let the trackee know they were being tracked (and if so, whether it's anon or not). And trackees would be able to choose whether or not they want to access the tracking stats.