As part of a workflow, where an analyst is asked to complete a document. The document may need to be emailed to the requestor (user). This would require the analyst to use a separate program, such as Outlook, or email from the Request, which would require them taking action on the request (possibly locking it and subsequently the workflow).

The ability to add an attachment to a  preceding task, then on the messaging task specify which task it should get it's attachment from, would be very beneficial.