> I often hear doubts that anyone wants this.

This was actually a key feature that was greatly desired by a large organization's HR function when they were working to setup a consolidated enterprise data warehouse a decade back.

It would have made it much easier for retention specialists to be able to do things like answer how much a missed retention bonus should have been once the paperwork had been fixed up.

Likewise for the same organization's board for correction of records, and in general any offices that have to make sense of what the world was like for the computer-based records years ago, and how that would change if certain data would have been different years ago.