The idea of a corn snake registry has been bantered about almost as long as we have all been breeding corn snakes. The idea, in theory, sounds good, but the devil is obviously in the details. Otherwise I would have started one myself many many moons ago. I can distinctly remember having the domain name CornSnakeRegistry.com all ready to register, but thinking about it a bit, I just said "NO WAY", and passed on that idea.
The most insurmountable problem is the fact that any system will be subject to a "garbage in, garbage out" situation. Not only the matter of incorrect data, but cases of blatant lying about the genetic makeup and ancestry. Since there is really no way to VERIFY the provided information, it's value to anyone would be limited only to those people providing the information that you personally trusted.
Another issue was the problem of workload. Quite frankly, any system that required ANY workload at all, would likely be too much of an additional burden for the people whose input would be most valuable to the system because of the VOLUME of the data THEY could provide. Seriously, when I have 3,000 to 7,000 babies hatching out, the very LAST thing I need is even more work to do. So no matter how valuable (or interesting) such a system might be to some, the time involved and workload needed just will not be available WHEN it is needed. And once the majority of the babies have been sold and some time is then available, what is the sense of doing the record keeping at that late date in the season when most of the babies are now gone?
Then there is cost. No one would do something like this for free. But even if registration were a minimal $1 per head, assuming the above concerns were not valid, why would anyone producing 3,000+ animals want to spend another $3,000+ on registration, adding to the overhead for snakes where every year buyers seemingly expect the prices to be LOWER than they were last year?
Lastly, and perhaps overlooked quite often, is the fact that many people are doing projects that they would really rather not have made public before reaching fruition. Certainly I have several such projects ongoing, so I assume other people do as well. Why would people engaging in such projects want to make it public in a registry? So if they don't, how can ANY of the animals related to those projects be registered with accurate information without tipping their hand on what they are working on? They either have to exclude even the culls from those projects from the registry, or falsify, at least partially, the information they provide about them.
Actually, in proofing this post, it appears that ALL the issues may very well be insurmountable. :shrugs:
So as I mentioned, it is a good idea, but seriously, it is just not probable that such a system will ever be practical in utility. It is not really a failing in anyone attempting to do such a thing, but a failing in the details of information collection and management over which they have no control whatsoever needed to make it work.