The tag is apparently supposed to be for little papers indicating debt, but however, the tag as far as I can tell seems to be mainly be a pet tag for Yorigami Shion. While I understand that some tags are only going to see use in a limited number of instances, the fact that searching debt -yorigami_shion returned very few posts seemed kinda alarming.
How useful is this tag, really? Is there any reason to keep it around, I wonder? Because I'm tempted to try nuking it if not.