We're not seeing anything of the sort, and couldn't possibly for some time yet.
What we are seeing, as evinced by the article, is how ineffective these laws are at actually keeping kids off social media, and how effective the mass collection of identity data is at creating an environment for scammers, hackers, data brokers and the means for widespread political oppression.
You frame it as "we've come up with a composite score (social credit) that lets us more efficiently enforce [stuff HN likes but the population likes way less]" and it's mostly all cheering and the one guy with principals is downvoted and flagged.
I can only say what I've observed from numerous threads - people's advocacy for privacy on the internet here does not extend so social media.
But OK this could be fun let's put my keyboard where my mouth is: https://news.ycombinator.com/item?id=48680434
Social media is full of astroturfing.