+1 to this. I got locked out of my StackOverflow account because they stopped supporting my auth provider, I think a couple of years ago.
This question is about a Facebook account that was deleted but it should apply to OpenID providers that go away too. The mods' comments seem to indicate that the "Contact Us" link gets you through to a human that may be able to help as well.
+1 to this. I got locked out of my StackOverflow account because they stopped supporting my auth provider, I think a couple of years ago.