Digital decay does not refer to how information is lost. Instead, it describes a deliberate process or belief by which content (information) is actively destroyed or neglected, as to prevent a glut of content.
One assumption of this is that there is a such thing as the trivial or unimportant, and its very existence is a burden — regardless of the cost or availability of space and resource.
The historian or curator now relies on a computer to first sort information before even approaching it because of the vastness of data. But can the initial sorting by the machine be flawed? In another case, the user of a piece of software can be overwhelmed by his own data-creation. Should the software have built in ways to eliminate data?