I haven't heard the arguments against this, what are they?
Probably "bureaucracy" or the fact that there's no enforcement mechanism to make it so. A lot of times, people just knee-jerk on things like this, too.
As a former GM, though, I can't emphasize enough how we need statute added to the Wiki in a timely fashion. I just wish the referendum had some stipulation that if legislation is not added to the Wiki within two weeks, then it is not law. People take the time to pass the stuff - they should take the time to add it to the Wiki.
The Pacific already has this, the Regional Secretary of the Wiki, and we could probably use positions like this for each region and one or two national ones.