Not the OP but my biggest missing features would be: - the ability to send the output of one smart query into the input of another - not needing to escape every quotation mark in a query, and maybe the ability to combine operands eg ( title =~ {linux,macos} as opposed to title =~ \"linux\" or title =~ \"macOS\") - a dashboard mode that can show a snippet of the top headlines and maybe autoscroll - ability to mark an article as read after a certain delay

I've started working on my own "power user" RSS reader that lets you weight the keywords you're interested in (so an article that hits important keywords but is older could be displayed above an article that's newer) but it's still closer to a proof-of-concept than a complete app.