Maybe I'm missing something. On Area51, I first logged in with my OpenID (gmail). Attempted to vote, but was told I needed to confirm my email. Then realised I could copy my profile from StackOverflow. And yet I still needed to confirm my email. So:
1) If I'm logging in with a gmail OpenId, surely my email address is already "confirmed". 2) If I'm using the same profile as on StackOverflow, again, surely my email address is already "confirmed".
And finally: the whole process of logging in with an OpenId, then subsequently discovering that you can, after all, use an existing profile from another StackExchange based site is very confusing to people like me - infrequent users of these sites. I suggest the GUI people try this out some time and see the awkward series of steps.