@Evilgrayson They could certainly do a better job of clarifying, e.g., “right to use in the context of the game” or something (again, I am not a lawyer). There’s a philosophical difference between “you can’t take back the toys you contributed to our shared sandbox” and “we can do whatever we want with your content”. My interpretation is they were going more for the former but you could always ask them to be more specific in the policy.
As far as AI goes - I hate it too, but realistically those companies are not respecting copyright claims anyway. They consider anything on the open internet fair game. Unless you’re playing on a locked down sandbox, your content is likely going to get scraped no matter what the game policies say.
@Pavel Generally in the US you have an automatic and immediate copyright to your creative works. That’s why you’ll find that most sites driven by user-generated content (social media, wikis, etc.) will all have a similar clause in their terms of service somewhere. For example, Facebook’s ToS (abbreviated):
We need certain permissions from you to provide our services:
…
You retain ownership of the intellectual property rights (things like copyright or trademarks)
…
However, to provide our services we need you to give us some legal permissions (known as a “license”) to use this content. …
Lawyers could debate whether something as small as a MU description constitutes a copyrightable “work”, but elaborate wiki pages, vignettes, etc. would be more likely to qualify.
Of course, in the context of a MU it gets a little murkier. Many them are not on solid copyright ground to begin with (operating in the gray area of fan fiction) and there’s probably (IANAL) some defense in the expectations around the shared nature of the experience.
All in all, it seems unlikely that anyone would go to the expense of pressing a copyright claim over MU stuff, but I can understand why the game runners may want to protect themselves.