I also wasn't very clear in how I wrote the post. It wasn't meant at anyone in particular, per se, but rather to the idea that what CAC does could easily be replicated by others. I should have written the post better.
I'm starting to work on a CAC explanation / unofficial CAC FAQ on my site, here is the first little tid-bit which is relevant to this older thread: http://www.geekprydecoins.com/Pages/Thoughts-on-CAC