Wow this is pretty intense! From CNN:
A court in Switzerland has convicted a man on several counts of defamation after he "liked" libelous comments on the social media platform. The court in Zurich found that the man indirectly endorsed and further distributed the comments by using the ubiquitous Facebook (FB, Tech30) "like" button. The man, who was not named in the court's statement, "liked" several posts written by a third party that accused an animal rights activist of antisemitism, racism and fascism.