I can't speak much Chinese but I can still see evidence that the Chinese have the same kind of separate instant-messaging language, even when they chat in English.

我不会说多少中文，可我还是看到中国人也有类似的网上速记语言，甚至他们用英语聊天时也是这样。

youdao

I got to know lots of literary and art youth there, we chat, write poems with Chinese or English, post the works in BBS, expect the new items everyday, leave messages and comments.

大家聊天，对诗，时而中文，时而英文，又在BBS上贴作品，在每天的期待中欣赏着新作，又纷纷留言评论。

youdao

Discourse analysis of online chat. Formal and Functional Studies in Chinese. pp. 373-93.

网上实时聊天的篇章分析，《汉语的形式和功能研究》，373-93页。

youdao