However, the worst instance of censorship [of Chinese fanworks] is that of the ongoing third wave. This censorship campaign relies on a large-scale, omnipresent reporting system. Many reports come from informants inside the community, especially antifans of a certain genre of writing, or even antifans of certain slash pairings. Using the power of governmental censorship to persecute people of a different fannish position has been a common practice since 2014, but it has reached new heights in the past year or so.
Zheng, Xiqing. 2019. “Survival and Migration Patterns of Chinese Online Media Fandoms.” Transformative Works and Cultures, no. 30. https://doi.org/10.3983/twc.2019.1805.
On fans reporting other fans to censors in China