yamanii , 6 months ago

No, it isn’t.

Petrella v. Metro-Goldwyn-Mayer, Inc.

It is hardly incumbent on copyright owners, however, to challenge each and every actionable infringement. And there is nothing untoward about waiting to see whether an infringer’s exploitation undercuts the value of the copyrighted work, has no effect on the original work, or even complements it. Fan sites prompted by a book or film, for example, may benefit the copyright owner. See Wu, Tolerated Use, 31 Colum. J. L. & Arts 617, 619–620 (2008).