Deleting Noderef Handles

Using OE 10.2A..

Like query handles, I have always been very diligent about delete x-noderef handles.  I would love to be able to relinquish some of said diligence to the AVM.

For the use-widget-pool option on a class definition, the helps states that it:

"..Directs the AVM to create an unnamed widget pool that is scoped to the class hierarchy of each instance of the class. When specified, all dynamic handle-based objects that are created in the class by and for instance class members are created by default in this unnamed widget pool."

My question is, does this include x-noderef handles? Query object handles? Based on logger output using the Dynobjects.XML entry type, I am still not sure.

Any guidance would be welcome.