by Hui Min Neo ROME, ITALY — Just a few months ago, he was an ordinary Chinese art teacher who posted his personal thoughts and paintings online. When demonstrations erupted against Beijing’s hardline zero-Covid policy, the 30-year-old known on Twitter as “Teacher Li” became the go-to source for videos, some of them real-time. With images or talk of protest wiped out on Chinese social networks by government censors, thousands of people turned to Li, who lives in Italy, to make their voices heard. “I never expected it,” said Li, who asked AFP not to reveal his full name because of…