Because I see it a lot when there is no junk. It's an ugly red WARNING WARNING WILL ROBINSON! when there doesn't need to be. I get appt reminders and other things and I'm tired of seeing it. I almost never get junk. So.. as an adult, I'd like to choose to turn it off.
yeah its trash, im so sick of it showing up, they basically added an extra step to just delete a message. i hate it. it should be a long hold and option to report junk, not report junk automatically when swiping to delete