Why were the terms indecent and patently offensive controversial in the Communications Decency Act?

The terms indecent and patently offensive were highly controversial in the Communications Decency Act (CDA) primarily because they were considered legally ambiguous.1

Because these terms lacked precise definitions, they created significant uncertainty for Internet service providers and businesses regarding what content might trigger criminal liability. This ambiguity, combined with the difficulty of effectively screening minors from online content, meant the law placed an undue and "unacceptably heavy burden" on protected speech.12

Critics and civil rights groups argued that these provisions functioned as a form of censorship that threatened to restrict a vast segment of the Internet community. Ultimately, the U.S. Supreme Court ruled in Reno v. ACLU (1997) that these provisions were unconstitutional, as they violated the freedom of speech protected by the First Amendment. The court's decision affirmed the fundamental ethical principle that government restrictions on speech must be clearly defined and narrowly tailored to avoid infringing upon the rights of citizens.21