One. There’s a mandatory category where you state your country: you can choose between the “People’s Republic of China,” or “Other countries and places.”
Two. The speckled dots is, I believe, a sign that the image is supposed to prevent spam entries (sort of like the enter-the-code in the warped image tests, technical term: captcha). Are Chinese characters are so hard to parse that only a few dots are needed to throw off the spam bots / automated hackers?