As long as everyone keeps posting every move they make at every target they go to it will die pretty quickly in tri state area. Have you noticed that hardly anyone from other areas post what they do???
I think you are mistaken here. I think that the reason things die first in the Tri-state area are because of a few factors:
1) High concentration of MS, and limited store availability leads stores to notice techniques faster
2) Large fraudster population in the area who are using the same techniques as MS'ers which draws even more scrutiny
3) Not laying blame on DD, but many newbies unfamiliar with a MS technique may try something based on limited knowledge of what they saw Dan post about on the main page, and just expect that it will work no problems and start complaining when it doesn't work how they expected it would. Not intentional, but the impact is that it kills a technique faster.
Obviously this is my opinion, but I think it makes sense. If I didn't live near a major metropolitan area, I would tend to agree with your assessment much more.