I have exactly the opposite experience. As a Go developer, I'm used to seeing Chinese developers and users speaking Chinese in the issue tracker showing no regard and respect to the rest of the world.
Not that I condone blocking github in China, but my experience with the Chinese is less than stellar.
Yes, English is the "universal" language, whether we like it or not, and speaking in another language in a public place (such as a github issue tracker) is disrespectful, because it's like gatekeeping information and knowledge.
No it's not. This is imperialist thinking. There is no universal language.
If you want to understand what they're saying hire a translator or use an online service. They're not using some obscure language only a few people understand.
Not that I condone blocking github in China, but my experience with the Chinese is less than stellar.