I haven't quit but I've only logged on a few times in the past 1.5 weeks. This week, I ran the weeklies on Tuesday and logged in Friday morning to grab something from Xur. I've completed my Exotic collection, I have every exotic Xbox offers (weapons and armor), I've got 3 characters 1 of each class all with the best weapons I can get them. I still like the game just right now I'm bored with my options. I love grinding so the repetitive stuff isn't a big deal but I don't really need/want to level anything else up.