When creating an account on phabricator, if you use the feature "From Github" for instance and you mistype your email address, you will never be able to correct it since the only thing you have access to is the message "please confirm your email" (which you cannot do of course). It could be handy to consider access to the "profile" tab to change the email and send a new verification.
(I'm saying this because it did happen to me when creating an account on secure.phabricator.com, so sadly I'm locked out…)