Why closure is the field that matters
An open list of complaints tells you what annoyed people. A closed log tells you what was fixed. The second is a management tool and the first is a record of irritation. Adding a closure date changes behaviour on both sides, because an item that stays open is visible, and visibility is what produces action on things that would otherwise be absorbed indefinitely.
Closure also forces a judgement about cause. If a meeting room is repeatedly found unclean, cleaning it again closes the instance but not the item. The useful closure records why it happened, which might be that the room is booked past the cleaning window three nights a week. That answer changes the schedule; another wipe-down does not. That is also why closure needs a date rather than a tick, because an item marked resolved without a date cannot be checked against when the problem next appears.
