Index: src/bp-settings/bp-settings-actions.php
===================================================================
--- src/bp-settings/bp-settings-actions.php
+++ src/bp-settings/bp-settings-actions.php
@@ -305,6 +305,9 @@
 
 	if ( isset( $_POST['notifications'] ) ) {
 		foreach ( (array) $_POST['notifications'] as $key => $value ) {
+			if ( 'no' !== $value ) {
+				$value = 'yes';
+			}
 			bp_update_user_meta( (int) bp_displayed_user_id(), $key, $value );
 		}
 	}