I just finished reading through the post. While I agree that the awarding of guild houses to those that promote roleplaying, would promote roleplay on the server, I found the text to be worrisome. Maybe I am wrong, but there seemed to be an implication that those that have a guild house at this point will be losing said guild house, for no other reason than you want to change who gets guild houses and make the change retroactive. I find this worrisome because it would imply that the current leadership of this game world doesn't see the value of honoring a contract. Those guilds that managed to achieve the acquisition of a guild house, had the expectation of having entered into a contractual relationship. That the characters and the guild have managed to acquire private property. And that they have the expectation that the authorities will live up to their legal obligations. Now the players of course do not have a contractual relationship. It is the characters in the gameworld that do. The setting of the game by its nature and design has assumed the position, that the cities of the world have a working government. And that with this comes the expectation of the rule of law.
This expectation of the rule of law has further been strengthened by the creation and posting of the law's concerning combat within city limits. And the use of a jail for those that break this law. Without the rule of law all you will have is anarchy. And the laws that are in force need to be consistent and applied equally to all. To do otherwise is to invite disaster.
The stated goal of this project is to create an immersive world where people can create characters and assume roles. In order for a world to be immersive it has to be consistent. So to maintain consistency in the world must have a coherent set of rules, not only in terms of what characters are allowed to do or not do, but it must also have a consistent set of rules governing the characters relationship to the world itself. And this includes any interactions with those playing said governmental operatives. So if you want to promote roleplaying, you have to keep a stable framework upon which to build. Because in order for one to assume a role, one has to have a firm understanding of the enviornment that the role will be played in. Once the world is a stable framework then, you can add incentives. But your incentives must not violate the world framework or you will sabotage your own efforts.
I suggest that you study the works of Hans Herman Hoppe, Ludwig Von Mises, Bastiat, Adam Smith, John Locke, FA Hayek, Murry Rothbard. They can give you the foundation you need to create a stable society.
In closing, Keep your rules simple. Apply them equally to all. And support the role of liberty and inalienable rights. Private property is the foundation for everything else. And the characters need a world where, you have the rule of law. The only legitimate purpose of a state is the protection of liberty.