In your original Animal Crossing Bells post you spoke about defending the identity based on years of experiencing oppression, which is totally legit. But that's how the event that led to the occurred.
It's similar to that movie where that woman attacks a man with dreadlocks while saying"stop appropriating my culture" over and over again. People made the very same comments like you did, but the fact is, she did not give him a very long speech about how she understands that dreadlocks have been shared across the Earth, but she is still sensitive about it seeing white folks with locks, because for quite a very long time black individuals are told that they're filthy and do not seem like actual people unless they straighten their hair.
No, rather she was grinning while assaulting him and was an arrogant piece of shit. If you want to talk about the nuance of a situation, then you've got not be ignorant yourself. The nuance is not a shield you can just slip under the door once you have acted like a total bully.
Also, what cultural meaning do hair buns, which are common across the planet have in this respect? I am really reminded of this Chinese dress issue, where twitter bullied a white woman wearing it, for precisely the same"you do not understand the cultural meaning" reason, before the actual Chinese country account on twitter(iirc) told me that it is totally nice and she looks terrific.
I'll start with your last point which is to say that I believe the article was specifically referring to a afro bun. So that the afro part cheap Animal Crossing New Horizons Bells is what's being appropriated.