And the fight to overturn FOSTA continues. Last week, two human rights organizations, a digital library, a sex worker activist, and a certified massage therapist filed their opening brief in a case that seeks to strike down the law for its many constitutional violations.

Their brief explains to a federal appellate court why FOSTA is a direct regulation of people's speech that also censors online intermediaries that so many rely upon to speak—classic First Amendment violations. The brief also details how FOSTA has harmed the plaintiffs, sex workers, and allies seeking to decriminalize the work and make it safer, primarily because of its vague terms and its conflation of sex work with coercive trafficking.

"FOSTA created a predictable speech-suppressing ratchet leading to 'self-censorship of constitutionally protected material' on a massive scale," the plaintiffs, Woodhull Freedom Foundation, Human Rights Watch, The Internet Archive, Alex Andrews, and Eric Koszyk, argue. "Websites that support sex workers by providing health-related information or safety tips could be liable for promoting or facilitating prostitution, while those that assist or make prostitution easier—i.e., 'facilitate' it—by advocating for decriminalization are now uncertain of their own legality."