An Orlando plastic surgeon's defamation lawsuit against an Osceola County patient could be a sign of legal struggles that will test the boundaries of freedom of speech as rating sites flourish on the Internet. Domingo Rivera, attorney for Dr. Armando Soto, said the patient's comments on RateMDs.com are not opinions protected by the First Amendment but a "malicious campaign of unlawfully defaming and spreading lies" about his client and business.