You have a right to complain or post negative comments about the products and services you buy—and companies can't use retaliatory non-disparagement clauses, a.k.a. "gag clauses," to stop you from doing this, according to the Federal Trade Commission (FTC).
The FTC made it clear last week that it now considers any attempt to scare customers into silence unacceptable and a violation of the law.
The Commission believes that using a gag clause that prohibits consumers from saying anything negative, making any truthful negative comments about a company, is an unfair practice that violates the Federal Trade Commission Act," said Mary Engle, associate director of the FTC's Division of Advertising Practices. "We believe that it's really important for truthful information about products to be out in the information marketplace."