I've been using Word Press Open ID. I thought I'd add Stack Exchange login. It asks for my email address and password. Then it says it cannot find a Stack Exchange account with that email address. The email address is in my Stack Overflow account. I had already clicked to sync Stack Exchange with Stack Overflow. But Stack Exchange only shows the name and web site in the big box. Big box is a highly technical programming term. (See vol. II of Knuth.) I didn't spend much time on this, so it is quite possibly a mental problem on my part. I thought you'd like to know about it, though, because at a minimum it is a bit obscure.
Also... "possible bug" is possibly a bug.
I click on my username
I click on "my logins"
I click on "Add More Logins"
It says, "Click the logo to add another login to your account" so I click on "Log In with Stack Exchange"
It says, "Sign in with your Stack Exchange Account"
I fail. How do I create a new Stack Exchange login? I really don't care that much, it's for your info. I just thought it was a little obscure if not broken. I really like the sites, by the way!