User blog comment:ChishioKunrin/Is Monty answering fan theories?/@comment-50.155.14.154-20131111133552/@comment-4010415-20131111144818

I think they mean that the account added the "Taiyang Xiao Long" bullet point, not the "Yang Ju-Long" thing. Therefore, Yang's father's name may be Taiyang Xiao Long, and Yang's last name really is Xiao Long.