We had a use case where a customer "accidentally" deleted a high-level Initiative ticket (above the Epic) and children, and they had access to the sandbox for testing purposes and wanted to have us export that sandbox ticket group as a backup "last saved" copy of that Initiative. Even though the sandbox was last copied 2 months ago they were happy to have some record of the progress.
We have taken steps to prevent this deletion from occurring for this user's project (permission scheme was set to allow most user roles the ability to delete issues) and we are now contemplating taking one of our two available sandboxes and using it to perform regular copies to have as a means of "backing up" the data from the Production instance as a last resort.
Has anyone else used their sandbox as a "backup" location for such purposes?
We would still use it for testing of new add-ons or automation processes, and I know this is not best practice for data preservation or retention, but as a means of keeping the sandbox up to date with the latest information from PROD is this a possible means of salvaging potentially lost data?