I'm posting this to try to be helpful by sharing my search experience.
I tried to find the broken links previously encountered. I did find lots of additional random information, including an explanation of "red links" which may have been what I remembered as broken links. It would be good to have an explanation of "red links" on any page.
It turned out that at one point in my previous search I was actually on the right page: one on divider bars. It says at the end of one paragraph and above a large photo (below which text resumes): "When available, the horizontal bar divides the Categories and Panes on top, and the File Listing below." The "Categories and Panes" was my issue, and when I clicked on that red link, I left the page to nowhere helpful. In the end, my issue was that the horizontal bar had hidden a section and in the process disappeared. But based on the documentation and the red link, I assumed that in the view I was researching, it wasn't available, as opposed to assuming that it was potentially available and continuing to read below the link and photo on how to restore it.
I also reminded myself of some of these issues:
1. There is a link to a user manual on the left hand navigation of the wiki, but if you click on it, it says "deprecated" at the top. Why not remove this link?
2. Using the "search" feature also returns many other "deprecated" pages. I'd suggest you filter these out of search results. It means it takes longer to find relevant info.
3. Here's a more specific example: Since I thought I might have inadvertently used a hot-key combination, I found the page "documenting" this functionality. It says "this content is out-dated currently, and may no longer be fully accurate". I tried one hotkey that seemed relevant, but when nothing happened I had no way of knowing whether that was because the hotkey no longer worked or because it wasn't relevant to my issue.
4. The search feature doesn't seem that robust. As I was trying to re-create my search, I did click on a link that led me back to the article on "divider bars". When I tested finding the article by searching, "divide bar" didn't find it but "divider bar" did. Search apparently works only on exact words.
5. And search apparently doesn't work on all words. I tried to find the explanation of red links a second time by searching on "red links" but retrieved nothing useful.
My overall impression from this and previous experiences is that there are many helpful and well-written articles, but the difficulty in finding them or using them as a learning experience is frustrating.