accounts.sql

SELECT
  accounts.id
FROM accounts
  LEFT JOIN users ON accounts.id=users.account_id
  LEFT JOIN (
    SELECT
      account_id
    FROM blocks
    WHERE target_account_id=1
  ) AS blockers ON accounts.id=blockers.account_id
  LEFT JOIN (
    SELECT
      account_id
    FROM mutes
    WHERE target_account_id=1
  ) AS muters ON accounts.id=muters.account_id
WHERE (accounts.domain IS NULL)
  AND ((accounts.actor_type='Person') OR (accounts.actor_type IS NULL))
  AND (accounts.silenced='f')
  AND (accounts.suspended='f')
  AND (blockers.account_id IS NULL)
  AND (muters.account_id IS NULL)
  AND (users.disabled='f')
GROUP BY accounts.id;

管理者のアカウントIDを1として。