Sablemage
Demi-God
Although I think there's a lot going on with cultural appropriation - there are a number of overly-influential YA commentators who are very quick to jump on any sniff of that to the extent of dog-piling.
My admittedly very limited experience of the cultural appropriation debate is that's it's one-way; as an example, if it is cultural appropriation for a white american artist to use native american themes in their work, why is it not cultural appropriation when the native american uses white themes?