The title was copied from the post, I did not see this before posting. Inspecting it further, he says: "I found out that 13 more
countries are affected with this xss attack."
The country-codes are obviously just handled as another parameter while the vulnerable code is the same on all of them. I am sorry if I helped to cause more confusion, but again - I just copy/pasted.
EDIT: I have updated the title.