How about a section like "things we have seen before but calling it threads that need a new name or a link to Report the thread for a " the post title totally sucks for searching but the content is right on the money and needs a new name link". IE:
"car is dead #&#%$^&*" post contained an issue about say a relay and it was deemed by the original poster to be the cause.
IE:Then Report thread to admin with new suggested post title?
I only say this because I had a hell of a time searching for what I wanted :(