Some of these may well have been missing from XF 1.2 and below, but I've never really checked. Some of these may be in templates or files that aren't in use. Can I sneak a feature suggestion in? The above list is possible thanks to an add-on by Guiltar (Developer Kit) which scans all templates and files belonging to a specific add-on: It's invaluable for developers and translators as it enables us to quickly find phrases that have been used in a template or as called in a PHP file, that don't exist as a phrase in the selected language. If something like this was implemented into the core, it would be extremely useful.