Regarding >>162-163; (transcript I made)
I must warn that the grammar used by the caller and the support person is very bad, please don't emulate it.
> Thanks! It's good study for me.
I think it may be more clear to say:
> Thanks! This is good information for me to study.
>>174
Regarding >>173
I think this man was trying to convey that the Japanese and Korean are of the same race (that being Asian or Humanity as a whole), but he was not belittling the Japanese nation or it's people. This was my impression.