I thought about an idea that could improve several issues in RSSBandit. It would make search results more readable and would enable to display only unread feed items for better readability.
I suggest that you make the "Search Results" folder look just like any other folder in feed subscriptions. Then to display search results inside the initial structure of feed subscriptions.
In the attached Search Folder Examples.jpg file, you can see 2 examples. On the bottom left, Search Folders displays the tree structure of items that match the search word. On the bottom right, the Search folder displays the tree structure with only unread items.
So it makes it easy to navigate search results by folder, also to benefit from the newspaper view which is much better than the current view for special folders like Search Results.
The same logic applies to "Unread Items", "Watched Items", "Flagged Items" folders.