I wrote to the US law firm running a class action against Meta for IP theft and got a good result:
Hello John — Thanks for your message about the LibGen dataset and the Kadrey v. Meta class action. More information is available at llmlitigation.com. From that page, you can optionally sign up for email updates from my co-counsel, the Joseph Saveri Law Firm. But otherwise, you don't need to take further action now. Because this is a proposed class action, you'll automatically be included if the class is certified by the court and your works qualify as part of the class definition (or you can opt out if you choose). I'm happy to answer any specific questions you have about this case, or the others I've brought on behalf of authors and artists (see buttericklaw.com for details). Thanks!