Searching for "8kHz" yielded two results but doesn't show the search result titles or the links to get to the post, though it does show links to the forum itself and the user who posted the result.
Same results no matter what I searched for, though if I initiate the search initially from the top level Forum, the search results work as expected.
This is as much your forum as anyone else who visits - being user-to-user forums, Adobe does not monitor these forums. If you have a comment or issue with the way the forum works (or fails to), you should post in the Forum Comments forum, which is dedicated to dealing with issues about the forums.
That forum does get some Adobe attention, but Adobe doesn't maintain these forums... they rent them, and apparently went for the lower cost options as far as repairs/maintenance goes (little if any).
Don't expect much to come from there for the issue you are bringing up... you won't be the first.