This is a European medieval SMA setting continent. As I said in-game, I do not believe that RL symbols have a place in BM (hence the rule about avoiding to mimic RL religions), much less on a SMA setting and much less an Asian RL symbol.
I don't think any images were uploaded, so I don't think you have to concern yourself with text descriptions Tom, but unless someone wants to bring in this symbol on other continents, I don't think we even need to judge if the symbol itself is acceptable in BM or not, because this happened on Dwilight and I believes it goes against the SMA rules.