Editing of index and discoveries is now available, but the logging for it isn't working quite yet. We also have a more complete feed in the works, you can find it at /feed/activity-feed. When it's done, we'll move the current feed into the more complete feed, and have a much more involved and informative feed to play with. This new feed will cover all the things, from user registrations, to index additions, to regular posts, and more.