We recently hit a bit of pain migrating the LDAP database, and lost a few accounts. No user data was lost, just the entries in the group and password tables. I've attempted to reconstruct them as best I can, but there's still a few missing, either because they were not in any project groups before the migration, or because I can't find a GPG key for the account anywhere.[
You'll know if this affects you because you won't be able to log in. If
this is you, hunt me down on IRC and we can fix things up.