[varikin]

This idea already applied in some companies in regards to limiting legal risk. I use to work for a backup company and one customer was a very large software company. This customer wanted to custom version retention that basically deleted previous version of files 2 weeks after it was deleted on the user's computer. Most other customers wanted the exact opposite. But you can provide documents to courts if they were removed under the standard policy.

Of course, once a lawsuit was underway, many backups were placed under legal hold and no longer pruned old versions.