Also phrase-related, #!-- XEN:VWPHRASE vw_specials ARGS() --#: 42 in "Editing Prefix"
And for the public wiki, pages show in area lists with #!-- XEN:VWPHRASE vw_talk_locked ARGS() --# when the mouse hovers over a padlock icon. This is for a page in an area with no discussion topics permitted (and with Comments tab etc removed).
Related discussion: Is there a better method for disabling the "Comments" tab globally within all wiki areas without the padlock (or any other substituted icon) displaying in wiki area content lists?
Where commenting is disabled on an area-basis, I'd also argue that a padlock icon may not be the most appropriate symbol here. Initially I thought it related to editing the page (e.g. author-only editing lock, edit prevention, etc), particularly as the "Update Protection" submit button uses the same icon. But it seems to relate to talk/comments being disabled. Could the microphone-slash icon be subtituted for talk_locked instead? Or just not bother with an icon for comment status. I think the issue is XenForo's padlock icon represents a thread that is closed from new posts, and in the case of a thread adding replies or likes/reactions is the primary interation method. Whereas arguably for wiki pages, I think the primary interaction method would be editing/revising a page. And when you're intending on editing a page the padlock icon relating to talk/discussion just adds confusion.