Speakers do not receive conference emails when GitHub private email is set

[thom4parisot]

I sign in on cfp.io with GitHub. I also have the following setting enabled on GitHub:

I probably had this setting when I initially registered on cfp.io.

Conference organisers assume the then provided GitHub email address (à la github-username>@users.noreply.github.com) is valid and will be able to receive emails.

I wish I could update my email address on cfp.io but I have seen any field related to this in the user profile form.