If you think that this thread is already done (As what you said new replies are parroted from other posters) then why not Lock this thread?
you are the Thread creator so you can just easily Lock this then there will no other spam in future.
On your lower left you can see the Lock option so the thread will be done properly because you cannot prevent posters from putting their answers here.
The reason I replied like that is the answer I was looking for is already answered. Why lock the thread when other members can post their thoughts regarding the topic. I believe that there are more ideas surrounding this topic could be posted in this thread.