I haven't read your latest revision in detail (or any in detail for that matter!) - I just randomly opened a couple of spoilers and sometimes spot discussion points. I remember seeing a post from you that you were revisiting your tag approach and I thought "cool, maybe he is going to be more conventional in his recommendation". Then I saw your post above and it seems you just traded some symbols in your tags. So I wondered if it was going to feature in your guidelines like it once had when I first saw it.
Your explanation above is good on your intentions with that.
Much kudos to you for your continued efforts on the iterations.