Making sense of "Players" and Creators"

For this post I am going to nip this player's rights and creator's obligations over morality in the bud. The problem here is not players seeking what they are entitled to, or game companies infringing upon free speech. Neither of these issues or even relevant in this argument, and I'll tell you why.

First lets look at similar, well established system, a bowling alley. Players pay a fee to attend a bowling alley, wherein they may play the game offered, as well as interact socially with other players. The game cannot be played outside of a bowling alley, and the equipment used to play the game: balls, pins, lanes, etc. are all owned by the alley. Therefore it is the call of the bowling alley as to what is allowed within their establishment. On the other hand, if they create an environment that does not encourage bowling, players are likely to attend another bowling alley instead. In short, the players cannot bowl without a bowling alley, and the bowling alley cannot afford to pay its lease without players bowling, both players and the alley understand this relationship. For love of the game, players band together and create bowling leagues, which the bowling alley supports as it increases their revenues.

Now lets look at how the MMO world operates. Players purchase a client that allows them to visit a server(bowling alley). Subscription is based on month long sessions as opposed to single trips. While logged into the server players utilize the character creator tools, navigate the game world, and interact socially with other players. The game objects, textures, animations, and physics are all owned by the server, and the Admins of the server have the final say as to what players can do with the game pieces they are playing with. On the other hand, if the game world becomes inhospitable to play, the players are likely to attend a separate game world.
In short, players cannot play the game without the game world server, and the game world server cannot afford maintenance and updates without players. It is assumed both the players and the server administrators understand this relationship. For love of the game, players band together and create guilds, which are supported by the game world server as it increases their revenues.

Recently however, there have been some debates as to what is to be done about "troublemakers" in MMOs. Players that seek to run off with game pieces and sell them, or cause disturbances to other players in the world. Who is responsible for such actions and what is to be done about them? This is not a difficult question. Upon logging into a game world the players are informed of the house rules (license agreement) and they must agree to abide by them to even get in the door. If a player breaks those rules, warn him or toss him out. If he keeps breaking the rules, ban him from the premises. How hard was that?