WhatsApp is making it easier to sneak out of groups you don't like

You know the feeling: A friend invited you into a WhatsApp group for people who love knitting and hip hop and now you're kinda sick of the 2Pac knitting memes. You decide to leave the group, but WhatsApp notifies everyone of your betrayal. Messages of disappointment are flooding in. That Dr. Dre sweater you had hoped for isn't...