Originally posted by: lordjediFair use still exists in the US. You do not need the consent of the copyright owner in order to make a fan edit.
The Fair Use statute covers "criticism, comment, news reporting, teaching (including multiple copies for classroom use), scholarship, or research" - of which none of what happens here falls under. The fact that such items are not "obviously" covered by said statute (107) means it could certainly be taken to court and made an arguement of.
That said, the best case scenario is that you simply lose money by mounting a defense by hiring a lawyer.