i am one of those artifact people, but in the southwest it is stuff from former military outposts, calvary etc. But being a military history collector, i have been on many of these websites.
finding intact stuka's in the forest in russia, tanks driven into the elbe river, some of this stuff is either still workable or is restorable.
As to the bodies, generally the people really interested in this stuff treat them respectfully. And they are repatriated to military cemetaries. They found an american a few years ago propped up against a tree in the ardennes. Identifying him for the family moved him from mia to kia.
There was a warehouse in poland i believe with stacked bones from the germans after the war, nobody knew what to do with them. Possibly they were later repatriated.
it gets bad at times, i remember a few years ago stacks of eyeglasses from japanese on okinawa found in the caves being sold.
