Whenever these arguments come up, there's always *one person* at least who is loudly, firmly, and utterly convinced that the whole thing falls under "Fair Use" and whatnot, and is utterly and completely dismissive and *sure* that the argument would prevail in court, and that they're standing on the side of Righteousness and All That Is Good in arguing for it.
There's an obvious problem with that, and it falls within the phrase in court.
Court is expensive. Lawyers are expensive. Being sued is expensive. Appeals are expensive. Add to that the legally uncertain nature of these servers in the first place and the fact that no one involved has the tens of thousands, or hundreds of thousands of dollars to blow on the legal process, and it boils down to this simple fact:
Respect Disney's and DC's trademarks and IP, or you will see a policy implemented like on the Live servers as soon as the first Cease and Desist letter appears, OR you will see these servers shut down forever.
No one has the money to fight these court cases, and no one should make it their hill to die on.