Well I am a living example to counter your assertion. I am a Chinese citizen who has NOT been required to submit my social media accounts (US ones: GitHub, twi

Well I am a living example to counter your assertion. I am a Chinese citizen who has NOT been required to submit my social media accounts (US ones: GitHub, twitter, Facebook or Chinese ones: weibo, renren) to the Chinese immigration in the past. And to my best knowledge foreign travellers are also not required to do so. I can also imagine the story will blow up in every news media if they start doing so.