What's the current state of proposals for and interest in what we called tombstones a while back?
I'm seeing use cases for managing spam; e.g., if your site accepts user-generated-content, and you make a feed of it available, it would be nice to be able to be able to have spam control reflected not only on the Web page, and in the feed, but also in aggregators' views of the data.
Cheers, -- Mark Nottingham http://www.mnot.net/
