In the beginning there was Ward's Wiki. Pages that were not yet witten could be referenced. Documents for complex subjects were created in the process of discovering the complexity, and were, in fact, useful tools to help developers track and manage emergent understanding. Using a simple syntactic trick, a creator could record the phantom of an idea that would need consideration without having to break out of the idea currently on the front of mind.
This, for me, has always been the fundamental value of wikis, that they support emergent ideas with simple syntax and clear signals and navigation to what remains undone.
The latest implementation of that in Confluence is the [Title]()\n trick that would create a link to an undefined page, that when I clicked on later would invoke the Create for the page that was already linked in the parent. Today I pulled this trick, and it didn't work, and somehow Rovo got involved, and tried to create a whole tome of content from the title that had pretty much nothing to do with what I was going for in the title. After some discussion with Rovo, it said that linking to pages that haven't been written yet has been removed from Confluence. That would mean to me that the primary value proposition of Confluence for me has been removed. This means I would have to reevaluate Confluence as a CMS, not an authoring tool. Is it better than SharePoint or OneDrive or Drupal, or a file manager, vi, and an apache server?
I have to hope that Rovo is misinformed, and that this fundamental creative tool hasn't been removed from Confluence. What is the current support for accidental and placeholder linking for later creation of pages?