This is a very interesting idea.
At the moment there is no way to add a user automatically.
However, if you're seriously interested in this... let me know (
henri@snippetmaster.com) and maybe we can work something out. I would need to build some kind of "API" to allow you to connect to the program using your own program, etc..
So your own subscription script would then send a "create account" request to snippetmaster, authenticate as valid, and snippetmaster would return the new user information to your program.
Let me know what you have in mind and we can go from there. At the moment, I'm extremely swamped with work, but I'm always willing to talk about custom projects.