Improving the SEO certainly gets my vote. I get agitated with the algorithm that decides that there are too many occurrences of a search expression and rather than give you the first page worth of hits, so that you realize the need to reconstruct the expression, just dumps you out.
Sounds like you are talking about the site search in the top right of the page. Honestly, you are far better using google to search the site. Use the prefix of "site:450bushmaster.net" on your search and you will get lots of results. Searching is always the biggest issue for forums. It takes up a lot of resources, and that is why the algorithms want you to be very specific and not use common or short words.
What I am referencing is the lack of Search Engine Optimization (SEO) for the site. The lack of a meta description and content besides actual posts is really hurting search engine rankings. For example, search "450 Bushmaster" on google. This site comes up as the 5th or 6th result. With some enhancements we could get closer to the top. There are lots of benefits to this.