As pointed out in another comment : "Other infractions reportedly include smoking in non-smoking zones, buying too many video games and posting fake news online."
The "buying too many video games" line came from the gamification aspect of a social network owned by a private enterprise and has nothing to do with the government scheme. And even they have backpedaled from that claim:
"Hu Tao, Zhima Credit’s general manager, paints a different picture now. She says the app doesn’t monitor social media posts “nor does it attempt to measure qualitative characteristics like character, honesty, or moral value.” Zhima Credit is not a pilot for the social credit system and doesn’t share data with the government without users’ consent, she says."
I can't speak for other people, and I didn't downvote you. But it sounds deliberately dishonest to pretend this is anti-terrorism when it's based on trivial misdemeanors like smoking.
Once you've established that you're not pursuing the truth your words are only poison/noise that harms the group of us who are trying very hard to figure out what is true.
"Criminals or serious offenders" includes those whose crime was offending the government or other elites by merely saying something that they didn't like. Only a tiny subset of speech should be considered a crime, like yelling fire in a crowded theater.
As pointed out in another comment : "Other infractions reportedly include smoking in non-smoking zones, buying too many video games and posting fake news online."