If I delete Map 1 from my Home Window is it considered stranded even though it is transcluded in Map 2?
If the two maps are transcluded in each other, but neither is reachable from the Home Window, then, Yes, they are both stranded. Map 1 is still in one view, although that view is not directly or indirectly accessible from the home window. The only way to find Map 1 is to search for it by name or tag. You can always “unstrand” an object by searching with the “All Views and Deleted Objects” Context. Compendium seems to be good about maintaining the Trash Bin as containing all and only stranded nodes. From there you could restore them to their original view or the current view, or purge them. “The issue we have is that a bunch of nodes will have the same tags, but some are to remain in the database since they are valid and reachable while others are not and figuring out which ones to delete is tremendously labour intensive (given that during my clean up I ran into 2400 nodes that were not directly reachable and which I had to delete manually).