At a recent PyCon a couple of attendees made a weak joke about forking a repository that came off as sexual humor (I don't know if it was intended that way or not). Someone was offended by it and tweeted a picture of them rather than approach the conference organizers. Things escalated from there.
As I recall it, by the end of everything, the jokesters had been asked to leave the conference and subsequently lost their jobs, and the community blowback after that resulted in the originally offended person also losing her job because the controversy would have made it basically impossible for her to act as a developer community liason.
There were no winners, but PyCon apparently does now make procedures for handling sexual harassment, etc. much more clear in conference materials.
edit: though clearly my recollection was flawed in some ways - among other things, only 2 lost jobs and I was incorrect about them being asked to leave the conference.