Well a wiki is just community access documentation, so anyone can update. So if someone knows how to do something they simply update/add a section to the wiki for that process. The update happens immediately and is available for all to see as soon as committed by the author but of course can be removed or changed by a moderator. Basically, you, minwah, don't have to write all of the documentation or keep answering emails or posts you can simply direct people to a specific section in your wiki site.
Now that being said you would need someone to host the wiki site and I don't know if Saint would be interested in setting up a section in the wiki.arcadecontrols.com specific for certain apps. The arcadecotrol wiki is very general just here are the front ends you can use not here's how you use them which is what the mamewah wiki would need to be...