This was giving too many permissions to regular users, such as the
permission to modify and delete other user's surveys. Accounts created
with these permissions in the past were adjusted manually.

service/survey.md

@@ -20,8 +20,9 @@ http://eh5esdnd6fkbkapfc6nuyvkjgbtnzq2is72lmpwbdbxepd2z7zbgzsqd.onion/
  5. If `Set password now?` is left at `No`, a welcome email will be sent to the
     email address
  6. Select the appropriate roles in the `Edit permissions` table:
-   * For regular users who should be able to create and manage their surveys,
-     select the `Permission to create surveys` / `General` checkbox
+   * For regular users who should be able to create and manage their own
+   surveys, select the checkboxes under the `Create` and `View/read` columns in
+   the `Permission to create surveys` row.
 
 [User management]: https://survey.torproject.org/index.php/userManagement/index