Drinking != excessive consumption. Telling us drinking is not stigmatized, is meaningless.
from http://news.bbc.co.uk/1/hi/world/asia-pacific/8350170.stm There have been quite a number of stories of death from this. Your assumptions about China are out of sync with reality.
Would people really self report excessive alcohol comsumption accurately?
This would not happen elsewhere, and thus, is a valid question. Would this effect, uniquely, reported numbers in China?
Thus the parent post made a sensible logical point.
Yeah, but it was expected to hear some "China bad" stuff in a thread about Chinese people - not even the government or the system. Hence, I dont believe you at all when you say "Government bad, people okay".
The social credit system is somewhat unique, and it is not a stretch to say drinking to excess may not be regarded as a favorable characteristic. This may disincentivize individuals from reporting the behavior. I am similarly curious, and fail to see how this is derogatory to either the Chinese government or its people.