This story has been around the tech. circles and is now hitting main stream media (NY Times article). See quote from NYT article below:
Mr. Ardia said that a far more chilling scenario, in his view, is a case involving Horizon Realty Group, a real estate firm in Chicago that filed suit in July seeking $50,000 in damages from a former tenant, Amanda Bonnen, who tweeted about mold in her apartment.Emphasis is mine.
In an interview with The Chicago Sun-Times, Jeffrey Michael, an executive at Horizon, said the tenant’s tweet was untrue, adding, “We’re a sue first, ask questions later kind of organization.” He later apologized for the comment and, in a press release, explained Horizon was involved in another legal matter involving Ms. Bonnen.