The Great Firewall and Social Stability: The concept of `敏感词` is inseparable from China's internet censorship apparatus, known informally as the Great Firewall of China (防火长城 fánghuǒ chángchéng). The official goal of this system is to 维护社会稳定 (wéihù shèhuì wěndìng), or “maintain social stability.” From the government's perspective, censoring certain topics prevents social unrest, protects the authority of the Communist Party, and promotes a “harmonious society” (和谐社会 héxié shèhuì). `敏感词` are the specific triggers that the system is programmed to find and eliminate.
Comparison to Western “Content Moderation”: While Western platforms like Facebook and X (Twitter) also moderate content, their focus and source of authority are different. Western moderation typically targets hate speech, harassment, misinformation, and graphic violence, and is enforced by private companies according to their terms of service (albeit under legal and public pressure). The debate often revolves around free speech vs. user safety. In contrast, China's `敏感词` system is a state-level, centralized, and politically motivated tool. Its primary purpose is not to protect users from each other, but to protect the state from dissent and perceived threats to its legitimacy. The list of words is secret, ever-changing, and a direct instrument of state policy.
The Culture of Circumvention: The strict control over speech has not silenced discussion but has instead fostered a unique and vibrant online subculture. Chinese 网民 (wǎngmín), or “netizens,” have become masters of creative circumvention, using homophones (谐音 xiéyīn), acronyms, memes, and even upside-down text to discuss sensitive topics. This constant linguistic innovation is a direct response to the existence of `敏感词`.