Sometimes when I filtering for a specific commander looking at most views/likes I see lists that have not been updated in a few years, so they do not include recent cards. I prefer to try and find more recent lists (especially for CEDH) that are somewhat up to date on the meta. Being able to filter for recent and popular decks would be very nice.
100% I would use this daily. Very frustrating to be scouring decks and sorting by highest views/likes and you have to manually look through all the old decks. There shoudl just be a filter to see if it was updated in the last x days.