A daigou is a personal shopper [smh.com.au] who buys items to send back to people in China, usually for a significant markup. This is a cheaper alternative for Chinese buyers to purchase products around the world. Especially produces so in demand in their home country that they often can't be purchased. Like decent quality milk powder produced by Australia. This has caused problems with locals in Australia with hundreds of tins of baby formula being purchased by Chinese daigou to be sent back to China. These daigou can strip shelves of milk powder in minutes. While supermarkets have responded with limiting the number of tins a person can buy per purchase this has failed as the daigou simply go straight back in to purchase more. In response, the Australian public now records videos of these Chinese shoppers stripping the shelves of baby formula then posts to social media [abc.net.au]. Australia is well known for giving anyone a fair go but there are limits.