diff --git a/src/applications/conpherence/controller/ConpherenceController.php b/src/applications/conpherence/controller/ConpherenceController.php
--- a/src/applications/conpherence/controller/ConpherenceController.php
+++ b/src/applications/conpherence/controller/ConpherenceController.php
@@ -78,10 +78,6 @@
       }
 
       $participating = $conpherence->getParticipantIfExists($viewer->getPHID());
-      $can_join = PhabricatorPolicyFilter::hasCapability(
-        $viewer,
-        $conpherence,
-        PhabricatorPolicyCapability::CAN_JOIN);
 
       $header->addActionItem(
         id(new PHUIIconCircleView())
@@ -129,7 +125,7 @@
           ->setColor('green')
           ->addClass('conpherence-search-toggle'));
 
-      if ($can_join && !$participating) {
+      if (!$participating) {
         $action = ConpherenceUpdateActions::JOIN_ROOM;
         $uri = $this->getApplicationURI('update/'.$conpherence->getID().'/');
         $button = phutil_tag(
diff --git a/src/applications/conpherence/controller/ConpherenceNewRoomController.php b/src/applications/conpherence/controller/ConpherenceNewRoomController.php
--- a/src/applications/conpherence/controller/ConpherenceNewRoomController.php
+++ b/src/applications/conpherence/controller/ConpherenceNewRoomController.php
@@ -34,9 +34,6 @@
       $xactions[] = id(new ConpherenceTransaction())
         ->setTransactionType(PhabricatorTransactions::TYPE_EDIT_POLICY)
         ->setNewValue($request->getStr('editPolicy'));
-      $xactions[] = id(new ConpherenceTransaction())
-        ->setTransactionType(PhabricatorTransactions::TYPE_JOIN_POLICY)
-        ->setNewValue($request->getStr('joinPolicy'));
 
       try {
         $editor
@@ -55,7 +52,6 @@
 
         $conpherence->setViewPolicy($request->getStr('viewPolicy'));
         $conpherence->setEditPolicy($request->getStr('editPolicy'));
-        $conpherence->setJoinPolicy($request->getStr('joinPolicy'));
       }
     } else {
       if ($request->getStr('participant')) {
@@ -110,12 +106,6 @@
         ->setName('editPolicy')
         ->setPolicyObject($conpherence)
         ->setCapability(PhabricatorPolicyCapability::CAN_EDIT)
-        ->setPolicies($policies))
-      ->appendChild(
-        id(new AphrontFormPolicyControl())
-        ->setName('joinPolicy')
-        ->setPolicyObject($conpherence)
-        ->setCapability(PhabricatorPolicyCapability::CAN_JOIN)
         ->setPolicies($policies));
 
     $dialog->appendChild($form);
diff --git a/src/applications/conpherence/controller/ConpherenceUpdateController.php b/src/applications/conpherence/controller/ConpherenceUpdateController.php
--- a/src/applications/conpherence/controller/ConpherenceUpdateController.php
+++ b/src/applications/conpherence/controller/ConpherenceUpdateController.php
@@ -24,9 +24,6 @@
       case ConpherenceUpdateActions::METADATA:
         $needed_capabilities[] = PhabricatorPolicyCapability::CAN_EDIT;
         break;
-      case ConpherenceUpdateActions::JOIN_ROOM:
-        $needed_capabilities[] = PhabricatorPolicyCapability::CAN_JOIN;
-        break;
       case ConpherenceUpdateActions::NOTIFICATIONS:
         $need_participants = true;
         break;
@@ -153,9 +150,6 @@
           $xactions[] = id(new ConpherenceTransaction())
             ->setTransactionType(PhabricatorTransactions::TYPE_EDIT_POLICY)
             ->setNewValue($request->getStr('editPolicy'));
-          $xactions[] = id(new ConpherenceTransaction())
-            ->setTransactionType(PhabricatorTransactions::TYPE_JOIN_POLICY)
-            ->setNewValue($request->getStr('joinPolicy'));
           if (!$request->getExists('force_ajax')) {
             $response_mode = 'redirect';
           }
@@ -256,16 +250,9 @@
 
     $participant = $conpherence->getParticipantIfExists($user->getPHID());
     if (!$participant) {
-      $can_join = PhabricatorPolicyFilter::hasCapability(
-        $user,
-        $conpherence,
-        PhabricatorPolicyCapability::CAN_JOIN);
-      if ($can_join) {
+      if ($user->isLoggedIn()) {
         $text = pht(
           'Notification settings are available after joining the room.');
-      } else if ($user->isLoggedIn()) {
-        $text = pht(
-          'Notification settings not applicable to rooms you can not join.');
       } else {
         $text = pht(
           'Notification settings are available after logging in and joining '.
@@ -459,12 +446,6 @@
         ->setName('editPolicy')
         ->setPolicyObject($conpherence)
         ->setCapability(PhabricatorPolicyCapability::CAN_EDIT)
-        ->setPolicies($policies))
-      ->appendChild(
-        id(new AphrontFormPolicyControl())
-        ->setName('joinPolicy')
-        ->setPolicyObject($conpherence)
-        ->setCapability(PhabricatorPolicyCapability::CAN_JOIN)
         ->setPolicies($policies));
 
     $view = id(new AphrontDialogView())
diff --git a/src/applications/conpherence/controller/ConpherenceViewController.php b/src/applications/conpherence/controller/ConpherenceViewController.php
--- a/src/applications/conpherence/controller/ConpherenceViewController.php
+++ b/src/applications/conpherence/controller/ConpherenceViewController.php
@@ -119,11 +119,6 @@
       return id(new AphrontAjaxResponse())->setContent($content);
     }
 
-    $can_join = PhabricatorPolicyFilter::hasCapability(
-        $user,
-        $conpherence,
-        PhabricatorPolicyCapability::CAN_JOIN);
-
     $layout = id(new ConpherenceLayoutView())
       ->setUser($user)
       ->setBaseURI($this->getApplicationURI())
@@ -151,12 +146,9 @@
 
     $conpherence = $this->getConpherence();
     $user = $this->getRequest()->getUser();
-    $can_join = PhabricatorPolicyFilter::hasCapability(
-      $user,
-      $conpherence,
-      PhabricatorPolicyCapability::CAN_JOIN);
+
     $participating = $conpherence->getParticipantIfExists($user->getPHID());
-    if (!$can_join && !$participating && $user->isLoggedIn()) {
+    if (!$participating && $user->isLoggedIn()) {
       return null;
     }
     $draft = PhabricatorDraft::newFromUserAndKey(
diff --git a/src/applications/conpherence/editor/ConpherenceEditor.php b/src/applications/conpherence/editor/ConpherenceEditor.php
--- a/src/applications/conpherence/editor/ConpherenceEditor.php
+++ b/src/applications/conpherence/editor/ConpherenceEditor.php
@@ -92,7 +92,6 @@
     $types[] = PhabricatorTransactions::TYPE_COMMENT;
     $types[] = PhabricatorTransactions::TYPE_VIEW_POLICY;
     $types[] = PhabricatorTransactions::TYPE_EDIT_POLICY;
-    $types[] = PhabricatorTransactions::TYPE_JOIN_POLICY;
 
     return $types;
   }
@@ -383,24 +382,12 @@
 
         $actor_phid = $this->requireActor()->getPHID();
 
-        $is_join = (($add === array($actor_phid)) && !$rem);
-        $is_leave = (($rem === array($actor_phid)) && !$add);
-
-        if ($is_join) {
-          // You need CAN_JOIN to join a room.
-          PhabricatorPolicyFilter::requireCapability(
-            $this->requireActor(),
-            $object,
-            PhabricatorPolicyCapability::CAN_JOIN);
-        } else if ($is_leave) {
-          // You don't need any capabilities to leave a conpherence thread.
-        } else {
-          // You need CAN_EDIT to change participants other than yourself.
-          PhabricatorPolicyFilter::requireCapability(
-            $this->requireActor(),
-            $object,
-            PhabricatorPolicyCapability::CAN_EDIT);
-        }
+        // You need CAN_EDIT to change participants other than yourself.
+        PhabricatorPolicyFilter::requireCapability(
+          $this->requireActor(),
+          $object,
+          PhabricatorPolicyCapability::CAN_EDIT);
+
         break;
       case ConpherenceThreadTitleTransaction::TRANSACTIONTYPE:
       case ConpherenceThreadTopicTransaction::TRANSACTIONTYPE:
diff --git a/src/applications/conpherence/storage/ConpherenceThread.php b/src/applications/conpherence/storage/ConpherenceThread.php
--- a/src/applications/conpherence/storage/ConpherenceThread.php
+++ b/src/applications/conpherence/storage/ConpherenceThread.php
@@ -33,7 +33,7 @@
       ->attachParticipants(array())
       ->setViewPolicy($default_policy)
       ->setEditPolicy($default_policy)
-      ->setJoinPolicy($default_policy);
+      ->setJoinPolicy('');
   }
 
   protected function getConfiguration() {
@@ -298,7 +298,6 @@
     return array(
       PhabricatorPolicyCapability::CAN_VIEW,
       PhabricatorPolicyCapability::CAN_EDIT,
-      PhabricatorPolicyCapability::CAN_JOIN,
     );
   }
 
@@ -308,8 +307,6 @@
         return $this->getViewPolicy();
       case PhabricatorPolicyCapability::CAN_EDIT:
         return $this->getEditPolicy();
-      case PhabricatorPolicyCapability::CAN_JOIN:
-        return $this->getJoinPolicy();
     }
     return PhabricatorPolicies::POLICY_NOONE;
   }
@@ -322,7 +319,6 @@
 
     switch ($capability) {
       case PhabricatorPolicyCapability::CAN_EDIT:
-      case PhabricatorPolicyCapability::CAN_JOIN:
         return false;
     }
 
diff --git a/src/applications/conpherence/storage/ConpherenceTransaction.php b/src/applications/conpherence/storage/ConpherenceTransaction.php
--- a/src/applications/conpherence/storage/ConpherenceTransaction.php
+++ b/src/applications/conpherence/storage/ConpherenceTransaction.php
@@ -53,11 +53,6 @@
     $new = $this->getNewValue();
 
     switch ($this->getTransactionType()) {
-      case PhabricatorTransactions::TYPE_VIEW_POLICY:
-      case PhabricatorTransactions::TYPE_EDIT_POLICY:
-      case PhabricatorTransactions::TYPE_JOIN_POLICY:
-        return $this->getRoomTitle();
-        break;
       case self::TYPE_PARTICIPANTS:
         $add = array_diff($new, $old);
         $rem = array_diff($old, $new);
@@ -90,37 +85,6 @@
     return parent::getTitle();
   }
 
-  private function getRoomTitle() {
-    $author_phid = $this->getAuthorPHID();
-
-    $old = $this->getOldValue();
-    $new = $this->getNewValue();
-
-    switch ($this->getTransactionType()) {
-      case PhabricatorTransactions::TYPE_VIEW_POLICY:
-        return pht(
-          '%s changed the visibility of this room from "%s" to "%s".',
-          $this->renderHandleLink($author_phid),
-          $this->renderPolicyName($old, 'old'),
-          $this->renderPolicyName($new, 'new'));
-        break;
-      case PhabricatorTransactions::TYPE_EDIT_POLICY:
-        return pht(
-          '%s changed the edit policy of this room from "%s" to "%s".',
-          $this->renderHandleLink($author_phid),
-          $this->renderPolicyName($old, 'old'),
-          $this->renderPolicyName($new, 'new'));
-        break;
-      case PhabricatorTransactions::TYPE_JOIN_POLICY:
-        return pht(
-          '%s changed the join policy of this room from "%s" to "%s".',
-          $this->renderHandleLink($author_phid),
-          $this->renderPolicyName($old, 'old'),
-          $this->renderPolicyName($new, 'new'));
-        break;
-    }
-  }
-
   public function getRequiredHandlePHIDs() {
     $phids = parent::getRequiredHandlePHIDs();