If, somehow, the IRS technogeeks HAVE found a new and foolproof means to absolutely delete, without-a-trace, gone forever, method of wiping out the stuff floating around in the cyber universe, seamlessly and totally untraceable, then they have perhaps the magic touchstone that will forever alter the keeping of records.
They cannot even hope to do this sort of thing. They can pile on so much stuff that it is a daunting task to dig through it, but even the ancient tombs of our ancestors eventually yield up the secrets.
What one person can do, can be undone by another.