Wishlist of features for Google Reader

I use Google Reader as my blog reader.

In the "manage subscriptions" page, where it lists all the feeds I follow and lets me rename, delete, and tag/folderize them, it would be useful for it to also display stuff like "is this feed still live", how many entries per week it generates, and how many other people read it.

It would be also useful to have a "cleanup", to remove blogs who's feed URL is broken, or haven't generated any articles for months.