ComputerMKII
Banned
I will admit this much (I mainly wrote the following for Kabouter): while I don't believe the quenelle was invented as an anti-semitic, let alone nazi gesture (as people have said, it basically just meant 'up yours') the fact that it has been used for despicable purposes by Dieudonné and his fans (as showed by countless pictures of quenelles at Auschwitz, Holocaust memorials and so on) and its description as an inverted nazi salute by the Licra, the government and the media in recent times, has changed its public perception and generally-accepted meaning so it definitely bears an anti-semitic connotation that it perhaps didn't have before. Therefore, now more than ever, doing it in public is a terrible idea as it probably won't be interpreted in any favorable way. If you have ever thought of doing it (I haven't), you'd be better off changing your mind or switching to a less ambiguous/risqué sign.