I see that this topic has been brought up several times since the creation of your application, but I couldn't find any real solution...
Surely there must be a way to use the keyboard to delete a single news item - my wrist is killing me from having to use the mouse to delete them!
I've made changes in the Key bindings, but no matter what settings I use no key is ever recognized and the news item isn't being deleted.
I really like the looks of your application, but this problem is a make or break issue - If there's no way to do it, I'll go back to FeedDemon...
Yes, I'm using Newspaper mode, the same as I do in FeedDemon, but there I can hit "J" to mark the item as read and automatically move to the next item, and when finished reading that feed, all the read items are deleted.