Yeah, I got logged out, too. out of the blue.
Wouldn't let me log back in, and the "Send New Password" command set me up with one of those user names of 24 random alphanumeric user names.
Can't seem to get back in as "Phos±four dots" (The actual name attached to the Adobeforums.com forums account is "Phos....") because the system won't accept my old password.
Ditched cookies and tried again.
The intarwebs is busted, and my Adobe is broke!
:)