There's a bunch of people who think "Win by any means necessary". If you're going to quit, or get angry and play badly after being T-bagged, then it's in their interest to do it to you. These same people were spewing hate out over their microphones back in the day, when there was a shared-channel in PvP games (pre-destiny). I hate being t-bagged. I like to think it forces me to raise my game, though. T-bag me once, and I'll see it as a personal challenge to dance on your corpse three times in a row. I'm basically a casual, but I'm a vengeful, bitter casual, and I can be sneaky with it.