In my opinion, I think there needs to be something like this.
Any mod or mod resource hosted on CivFanatics servers is free to use for non-commercial purposes, without permission, as long as proper attribution is given.
Honestly, I think one should have the reasonable expectation that their stuff isn't going to be used if it's hosted somewhere else.
And really, who is the owner of this site to exert control over remote content that is simply linked to? The only thing you do is put the users in a situation they wouldn't normally be in if it weren't for you giving permission for them to use it.
An exaggerated example being...
I host a mod on my webserver. The mod has its license. I link to it on the forums. Another user makes a modmod of it, and distributes it all over the place. I can now sue Another user for transmitting my intellectual property without permission.
That's a situation he wouldn't be in if you made it clear that offsite materials are off-limits.
And yes, there are legitimate situations where a mod author wouldn't want certain assets of his mod being used without permission. An example of this would be putting something in the mod that only the mod author has permission to use.
Having a community full of endlessly regurgitated content just cheapens not only the regurgitations, but the the original mod itself. It also makes the community look like it's comprised of nothing but talentless, uninspired children.
I'm sorry if you don't have any skills whatsoever to make your mod. Maybe modding isn't your thing. Or maybe it is? If so, learn something, and stop being lazy. And if you still can't do it, go hunt yourself down someone that can and build a team.
Let's face it, if you're embarking on an ambitious project, you're going to have to be reliant on someone at some point or another. That's just how the game works. All I know, is that I'm tired of seeing a stagnated mod community with umpteen mods using the same resources.
TL;DR
I don't want and mods that I have released, or will release ever to be cheapened just because some lot of children doesn't have the patience to learn some skills apart from cursing over X-Box Live and jerking it to a Sears and Roebuck catalogue.
That's what letting people use other mods' resources does. It cheapens the original mod.
You've
GOT to protect your mod authors, else they'll probably find somewhere else to go. And it's a shame, because this is a nice place. It does have its flaws though. Flaws that I'll seek to rectify in whatever way I can.
You protect your mod authors, and they'll be glad to poop out all kind of stuff. They just need a safe environment to do so.