Asking for way way too much information.
I've tried twice to add myself, and both time the "PITA" alarm goes off, and my privacy filter kicks in.
You should be asking for the minimum amount of information required for the purpose. Doesn't matter that you're not going to "use" this information, or send this to anyone else, or whatever. If the purpose doesn't require it, then you don't need it.
You should be asking for a handle/name, a location, an email address and password. That's it.
kamiga