5.11.3. Can I contact Ciro Santilli in Chinese? (我可以用中文联系三西猴吗?)

If you don’t know English well enough, that’s fine though, go for Chinese, Ciro Santilli will likely understand it: Does Ciro Santilli speak Chinese? (三西猴会说中文吗?).

But if you do, use English.

Ciro is not going to learn Chinese because of your message.

It is more productive for you to write in English, so that the rest of the West can also learn something new.

Especially since it seems that most Chinese already know what you are talking about, so you are better off teaching Western people about it.