My Weibo feed is full of Chinese people reposting Instagram content (blocked in China) that's posted by Russians (where Instagram is banned as well). People in

My Weibo feed is full of Chinese people reposting Instagram content (blocked in China) that's posted by Russians (where Instagram is banned as well). People in both countries just use a random free or dirt cheap VPN. The feasibility of a "big firewall" is kinda low if you're not willing to go full North Korea.