IMO, requiring some form of Specificity in the TITLE would go a long ways to helping everyone stick to identified themes/threads/blogs, and thus be more SELF-limiting and pertinent.
In other words let’s have NO “…xxxx of your dreams…” forums/threads.
Maybe this could be promoted with more specifically titled “Themes” (that only moderators can start, via individual requests).
Some Random Examples…
HorizontalMike