Wouldn't it be easier to get your name out there by joining forums like this one? I mean, here we get to know one another and share information. I know that I've directed people to other breeders that I've met here and on Fauna. No need for a registry to do that.
This registry idea just sounds like it would be far too problematic. That may be why there are only 800 corn snake breeders registered on the other registry you mentioned.