What is the practical use of "treasury" as a term here? As a generic term, it seems too general for us. From this perspective, I have a hard time seeing more than a few questions that would be practical enough for this site while using a generic "treasury" tag. That is, most economics questions of that sort would be keenly focused on treasuries as generic entities; that seems like "hypothetical country." It seems that a small trickle of questions of this sort may be an exception that proves the rule.
From the high-level view, yes I agree that they are two different terms and we should have a specific tag for "us-treasury." From the practical perspective, I have a concern about confusion and the suggestion that more open-ended, economics style questions are acceptable. After all, we would have a generic "treasury" tag.
What are some of the practical questions for a generic "treasury" tag?
I see little practical use of a generic "treasury" tag. To my mind, the practical questions would be related to a specific jurisdiction.