Voting starts in March for the Drupal Association Board election.
Twitter accounts can be added from a user profile as they were before. They are also listed at the user profile summary page. See a few screenshots at http://drupal.org/node/1883866#comment-6965496. These are from Drupal 7, but the logic is the same.
The field twitter_account.added_by_uid has been renamed to the old name it had, twitter_account.uid.