I still dont get this post.
How come that particular player is asking for chaos set be paid personally to the fact that craft materials can be bought at "N" shop via donation? Or even if it does not exist at that time, the next update made it available for donors? Thats a little bit Strange is it not? Did it mean that somebody saw a good opportunity?
Why donors donate? It is not because they are filthy rich or have a lot of money, it is because they have less time to spare for hunting or grinding.
It is not because they are lazy, but it is due to they are smart, creative and industrious. Why? Instead of hunting all day 24/7 at virtual world without assurance for any worthy item, they just work hard in real life. They spend their valuable time intelligently than idling around waiting for some good things to drop. There is a 100% probablity of gaining items via working in real life, when you earned your money then donate. Ofc that applies to the working people. And most of the donors are from the working class.
You farm in game, we donors farm in real life, simple as that.