If you manually create a test directory. Then cd into it and type the following:
echo Test > test.txt
mkdir TempTesting
cd TempTesting
mklink /H linkTest.txt "../test.txt"
The Remaining Disk Space will not duplicate the value. But it's still a catastrophe when your view Properties of a Folder or a File on Windows Explorer.
An end-user does not have to use the Command Line just to figure out the ACTUAL correct file size.
This is present for Junctions as well. BUT ATLEAST there's a visual indication that it is a Junction. Does that exist for Hard Links as well?