I’m not sure sarcasm is the right word. I’d say it’s more “self awareness”. Cake is a good example. They’re not serious and their music is almost a parody of pop-alt-rock at the time. Radiohead is borderline self-aware; they’re sad and they know it, but not so sad as to be “serious” about it like Dashboard Confessional.

If you can use an Xbox controller, you can work for the military flying drones to murder people from the comfort of your desk chair.