SEO (ffs), etc.
The forum has hundreds of bitcoins, why not use a tiny bit of that to create some search engine optimized content to get the forum to rank a bit better for certain keywords/keyphrases? The services board has dozens of content writers, some of them certainly know how to write SEO content, and if not, someone could be found for such a task.
AFAIK,
topic OPs are the only posts that rank on google search. And those that do (mostly in the technical, ANN, and service boards), are usually in the top 10 results because of Bitcointalk's very high domain authority (89).