deter - discourage (someone) from doing something by instilling doubt or fear of the consequences.
^ this is the deter I am talking about.
APT is on a different level than what you are used to. Also my question was rhetorical. Didn't actually mean for you to answer it. For you or your company it is not a viable solution since you don't have the resources.
No the response from me, internally is, is how did they get in, how can I plug that hole, and how can I make my systems more robust.
Your response is making china (the hacker) pay, in order to "prevent" future attacks, that is simply naive IMO nor it is a viable solution.