Honestly, I don't think it would make much difference. I feel like the search function does work very well, and even if things were spelled out on the first page, or organized people still want to be spoon fed their answers. If they are not using search, they are not going to browse an outline and read through threads. I think with forums it is just the nature of the beast. The only real way to rid a lot of it is to make people pay to register like some other forums and have more stringent tiers of penalties for being a nuisence. At some point even democratically. If the forum votes by a 3/4 majority to ban, then ban it shall be!
The problem with a search function, is you need to know what to search for. Sometimes it's obvious, like "on pants" othertimes it isn't "get foofed"