In a way this suit is very similar to the ones involving software like kazaa and napster. CoH doesn't directly violate anyones copyrights but it provides the tools for others to violate the copyrights. While I think this is ridiculous there is precedent and this law suit shouldn't be ignored. If Marvel wins then providing software that enables the violation of copyrights could be stopped. If you stretch this it could cover mod tools for most all games. This is all pretty far fetched, but then, once upon a time, I thought the idea of the dmca was also pretty far fetched.