Thanks for sharing your thoughts. It's much appreciated.
The main reason that I don't write completely in English is because I don't want my "bad" sentence syntax to reinforce other people's habits. It is very important for people who are studying English to get it right.
Another reason is that I write quite spontaneously and quickly. I found both languages have their own beauty and power. I believe language is a means instead of an end.
Rolians are a unique group of people who are using both languages in their daily life. That is another reason I don't write in either language completely. I would probably handle things differently with another audience.
Sorry for any inconveniece my postings might bring to people. I will spend more effort on improving both my English and Chinese writing. But after all...the purpose is inspiration not a quest for literary greatness( in either language).
Thanks for your kind advice. Have a happy holiday!