There’s talk of thread of people buying the later fare, and SDCing to the earlier fare, but I’ve heard the issue was actually the opposite. People were buying the earlier fare, which they had no hopes of making, and then expecting to be rebooked on the later one, which was much more expensive. And then freaking out in the airport when they weren’t able to do so. I’d imagine the amount of revenue lost is minimal, and if it makes the airport agents lives easier, I’m all for it.