What point are you trying to make?
Actually, they've already been made in the previous posts:
Imagine it was the other way round and you had made a mistake when initiating a domain transfer and the provider would reveal your private information and then somebody would start posting warnings all over the internet that "company X" or "person Y" is trying to steal domains. Then you would probably be here asking for advice on how to proceed against this outrageous breach of privacy from Godaddys side.
Then I suppose you won't mind the registrar submitting your information to the domain registrant or admin contact upon their request? It goes both ways, after all.
Pretend you mistakenly started a transfer for a domain name closely resembling yours. Pretend, anyway.
Typically a registrar transfer email will only say something like "a request has been made to transfer your domain to X", and not reveal
who exactly did that. If that domain's registrant or admin contact similarly demands the registrar give them the name and contact details of the person who started that, would you appreciate the registrar doing so with no further questions asked?
Maybe you won't mind. However, not everyone feels that way.
Sometimes some answers lie within...if one maybe imagines putting the shoe on another foot. Or something like that.
Anyway, a reason the registrar won't provide that person's information is likely due to their legal agreement/s with the person who essentially "did business" with them, part of which surely includes a privacy policy
not to give their personal information to just about anyone just like that for any reason etc. While the registrar sent you an email asking for your go-signal, they don't really have any obligations to you other than asking if you want to confirm that transfer or not.
Of course, you can always try what WebWork and jecasc suggested if you really want to pursue the issue further, depending on how important this is to you and how much time and resources you're willing to dedicate to it. Life's sometimes too short to worry about things that can (almost) easily be resolved without further incident, though.
David