I have found that searching is often the most difficult thing to do on any forum. It starts with just finding the right terms. Referring to the little box where you have to enter the letters in a picture, do you call it an "Image Verification Box" or an "Anti-Robot Hack" or what? (I have seen all of these.)
The best solution would be an improved search mod which offers alternatives, so if I were to search for "Anti-Robot Hack" it would also offer "Image Verification Box." [No, I'm not volunteering to write this. <img> ]
A quicker to implement solution might be a special forum (probably moderated) that has a series of posts in it that each contain similar search terms. Here is an example:
Title: Search Terms like "Image Verification"
Image Verification
Anti-Robotic Hack
Letter Pictures
Thus, when a user searches for something, they will hopefully come up with a set of alternative search strings to try.
The forum with all of these could be populated simply with posts from users who discovered the other terms they were looking for.
- John