Making this distinction in this post leads me to believe that Anniversary servers have a separate policy regarding selling items. Is selling any raid or dungeon item still considered GDKP to them on anniversary servers? Does that include ‘tips’ or ‘donations?’
If they’re gonna have separate rules about GDKPs between classic server types, they really need to go into detail about these differences. One large post about Classic Servers is hardly helpful when their players are not definitely sure what services are considered GDKPs to Blizz.