While empowering artists is obviously a good thing, this feels like an unwinnable arms race to me. Sure, Nightshade can produce incorrect results in image generators, but this will be mitigated, leading to another tool, leading to another mitigation, and so on.
For now, this may be a productive kind of activism that draws attention to the plight of artists at the hands of AI. Ultimately, though, real agreements will need to be reached. #AI