The tag serves as a way to find other local artists in the blockchain. I occasionally get upvotes, resteems, or comments from new names in the local scene. If they got some art blog going, then I follow up through discord. Newcomers don't think about browsing the pages looking for "art", "artzone", or whatever niche art post tag are out there, they look for "philippines".
I could just add a few paragraphs on how it related to the Ph since it's a rant, something along the lines of "Ph artists lacking in depth to their posts somewhere there" if it satisfies your criteria. kr, cn, and ph serve as identity tags.
But if I had to mind something as petty as using the tag because it's improper, the trouble ain't worth it. Please remove me from the curation trail.