> By contrast, the Chinese Wiki gets to party like its 1992.
On one hand, I'd say it's a gross mischaracterization of the Chinese Wikipedia and the Web in general. Many millions of people now has unprecedented accessed to the Web, and due to the current political atmosphere, various forms of populism has reached its full heights online, not unlike the English-speaking world. Wikipedia is not free from it.
Meanwhile, I'd your description is somewhat true. Due to the cultural barrier created by the Great Firewall, if you are a daily viewer of Wikipedia, it's likely that you are already a more academically-inclined individual. It's even more so if you have an account and make edits.
If the Great Firewall doesn't exist, and the Chinese Wikipedia has high popularity, I guess the community's attitudes towards newcomers will be very difference.