+
+StartLog: Before writing to the logs
+- &$priority
+- &$msg
+- &$filename
+
+EndLog: After writing to the logs
+- $priority
+- $msg
+- $filename
+
+StartBlockProfile: when we're about to block
+- $user: the person doing the block
+- $profile: the person getting blocked, can be remote
+
+EndBlockProfile: when a block has succeeded
+- $user: the person doing the block
+- $profile: the person blocked, can be remote
+
+StartUnblockProfile: when we're about to unblock
+- $user: the person doing the unblock
+- $profile: the person getting unblocked, can be remote
+
+EndUnblockProfile: when an unblock has succeeded
+- $user: the person doing the unblock
+- $profile: the person unblocked, can be remote
+
+StartSubscribe: when a subscription is starting
+- $user: the person subscribing
+- $other: the person being subscribed to
+
+EndSubscribe: when a subscription is finished
+- $user: the person subscribing
+- $other: the person being subscribed to
+
+StartUnsubscribe: when an unsubscribe is starting
+- $user: the person unsubscribing
+- $other: the person being unsubscribed from
+
+EndUnsubscribe: when an unsubscribe is done
+- $user: the person unsubscribing
+- $other: the person being unsubscribed to
+
+StartJoinGroup: when a user is joining a group
+- $group: the group being joined
+- $user: the user joining
+
+EndJoinGroup: when a user finishes joining a group
+- $group: the group being joined
+- $user: the user joining
+
+StartLeaveGroup: when a user is leaving a group
+- $group: the group being left
+- $user: the user leaving
+
+EndLeaveGroup: when a user has left a group
+- $group: the group being left
+- $user: the user leaving
+
+StartShowContentLicense: Showing the default license for content
+- $action: the current action
+
+EndShowContentLicense: Showing the default license for content
+- $action: the current action
+
+StartUserRegister: When a new user is being registered
+- &$profile: new profile data (no ID)
+- &$user: new user account (no ID or URI)
+
+EndUserRegister: When a new user has been registered
+- &$profile: new profile data
+- &$user: new user account
+
+StartRobotsTxt: Before outputting the robots.txt page
+- &$action: RobotstxtAction being shown
+
+EndRobotsTxt: After the default robots.txt page (good place for customization)
+- &$action: RobotstxtAction being shown
+