Here’s the reason you don’t see the outpouring of grief for Joan Rivers the way you did for Robin Williams: she was cruel. It is unfortunate that she has passed & I feel terrible for her family, but that does not change her actions. Her comedy was not so much comedy as it was making fun of people for cheap laughs. Crude, cruel, and inappropriate. Live your life the way Robin did; with kindness. People will love you for it and remember you better in the end.