Oh dear...You have better address the great wuxia novelist Jin Yong as Jin Yong or JY or JY laoshi is fine too. But calling him as Jin Laoshi might bring confusion to people who only read the thread title. It should be noted that Jin Yong's real name is Cha Liang Yong, and Jin Yong is only his pen name. His surname is not Jin.
But I was thinking very long ago that just plainly calling his pen name as JY would be not very respectful as he is an elder master.
JY laoshi is kind of long..... So I thought I would only call him Jin teacher "laoshi" since most people I talked to don't know his actual name.
I wonder how come he like Zhang Wu Ji more as you said from what you know?
call him Jin teacher "laoshi" since most people I talked to don't know his actual name. --> this is because you talked to people who don't know him. But if you talk to people who are familiar with his name or his work, they know JY or Jin Yong better than Jin Laoshi.
I wonder how come he like Zhang Wu Ji more as you said from what you know? --> from an old interview. I will try to find out the interview article. When JY wrote HSDS, his son died because of suicide, and he related a lot with Xie Sun whose son also died. Therefore somehow HSDS has a deep emotional attached with JY compared to his other novels.