Just feel relaxed, no matter you use English or Chinese in replying:
This problem has troubled me for some time when I first visited SIS. After consulting many of the main Chief Administrators, such as Pighead, I was told English is ALLOWED in this Forum provided the replies are sincere and meaningful.
Since then, my level has been upgraded from 0 level to level 7, all through English postings. Of course, this process takes quite a long time and various contributions to support our wonderful SIS.
Up till now, I have used English in all forum areas of SIS.