I'm not getting through the paywall but from the AutoTL;DR summary it sounds like there's also a chatbot component, maybe that's where it comes from. Still disingenuous though.
I always read black as "American black people", and there there definitely is a shared culture, of having ancestors that were slaves and not knowing where in Africa they came from because the slavers didn't care
For the gravel, I assumed it meant that any place that sells gravel is forced to give it to you for free. Still really powerful, but you have to think about the logistics.
Is that a thing, Chinese people being known for cheating in online games?