The Other Names list found in QuickBooks Desktop has been around a long, long time. It provides a place to capture the information of persons or companies that are neither customers, vendors nor employees.
I think originally when QuickBooks was first released it was a place where we could keep the names of potential customers or potential suppliers. Of course, a half-dozen or so years back, QuickBooks added the Lead Center to track potential customers (a mini-CRM) ......