Actually I have to admit I know a person like this.. and it's my own father. He loves China wayyy to much. Sometimes it seems he likes China more than Chinese people do. He will sit behind computer for hours searching latest news and information about China and then he will inform me about what's going on in China even though I'm the one who lives here... He considers China to be the most powerful country in the world and he always says Chinese army is much better than American. He always talks badly about western countries especially about European union or the USA, but China is forever amazing to him. He thinks China will definitely rule the world one day.
He is especially proud of me since I live in his beloved China and he will always talk about his daughter living in China to anyone who will listen to him.
Of course he is also very interested in Chinese food. After I came to China I took a picture of me with some mooncakes and send it to my mother. My dad is not very good at using a smartphone so I asked her later if she showed the picture to my dad and she said "oh yes I did", and she also said my dad kept asking her to show him the picture again and again because he was so interested in the mooncakes. One time my Chinese friend invited him as a joke to eat a dog together. But my dad just agreed right away. What the heck!! Even my Chinese friend was in shock that his joke didn't work very well with my dad. Because my dad would never refuse anything Chinese, even if it means eating a dog. In my country nobody would ever eat dogs but if Chinese people do that, then it must be okay... unbelievable..
People here on zhichu always tell me I must a fake foreigner since I say too many good things about China but I'm not sure what would their reaction be if they met my father. Compared to him I'm actually very critical to China.