MyOpenId.com was down for at least 15 minutes just recently, and I thought, "No problem I setup my Google login as my alternate openid provider." I clicked on that logo in the login page and it told me it failed. So I started to panic and tried to recover my account to my gmail address, that told me there wasn't an account associated with that email.
So now, when I log in finally with myopenid up again, I see that my alternate openid was set to profiles.google.com/myusername, and that my email was "firstname.lastname@example.org". So I was thinking, hey shouldn't that have worked? When I deleted the alternate openid and added google as my alternate one, the field now reads "Google (email@example.com)".
That means at least point #2 of the blog post about Google's openids is no longer true.
So when did this Google openid url change? Shouldn't user's have been migrated if it was changed? You say >60% of the users login with Google's openid. Were they migrated, and maybe the alternate logins were not? And why can't the recovery email for a gmail address match either the
firstname.lastname@example.org, or the
username\+.*@gmail.com, or your Google (email@example.com) if you've provided one either as an email or an openid?
Yeah, I'll be better about remembering what exact address I used in the future, but it would make sense to me in this context to know about the special case for emails from a provider that provides >60% of the logins.