It would be good to be able to exclude groups of holds from the cancel_expired_holds cron. Ideally, this would allow exclusion based on library, patron category, and/or item type. Ideally it would be set/edited from the staff client rather than the commandline.
I do like this idea, especially if those parameters could include found status, so that libraries that prefer to cancel holds manually could still cancel expired but unfilled holds. (And if that's too far afield from initial bug idea, I'm happy to file a separate one!)