Here’s an interesting application for List Popper that I just came across - deleting duplicate Things as one might generate when lazily populating a database from CSV:
(Also, I’ve never bothered to populate a database via CSV in the way that the original poster in that thread was attempting, so I figured I’d try it out and learn some stuff. I didn’t learn much as it worked pretty much as I would have expected, but I think this method of deduplication is pretty slick.)