Not entirely sure if this is possible or not, but it would be nice to have a date timestamp to see when a song was last played on the station.
It would be useful to avoid requests for songs that played recently - but not recent enough to show when using the /recently-played command. With this addition, I personally would use the /search command before sending a request.
I've included a pretty terrible mockup of what this would look like - obviously it would be a lot cleaner if this was to actually happen!