Earlier quoted context omitted.
Besides payments, WeChat is inextricably tied to everything you do in China from chatting with your friends to buying a movie ticket to visa renewals. I've spent over 400 nights in Chinese cities and I depend on WeChat like I depend on water. https://en.wikipedia.org/wiki/WeChat#Features
And how long, if not already - likely once their people are acclimatized to the idea of 'social rating' system - before they start subtly or aggressively warning people, swaying their behaviour, of potential for their rating to go down if associating with X who isn't using apps. A digitized version of Nazi Germany with mass censorship capabilities really is terrifying.
Considering the fact that the private companies pitching social credit to the government are merchants (Tecent & Aligroup) that is the only data they have access to.