That’s pretty obvious. A lot of emails you just glance at and archive. But some are talking directly to you, and often literally asking you to respond. Same thing, you can just hit archive if you want. Everything is a choice. You might be missing an opportunity. You might be being rude. But we make those same choices through other actions all the time.
I thought of it this weekend because I chose to respond to an email that was really on the fence (between me just archiving and me sending a probe response). The email was vague about an opportunity. The response we vague again. I responded again (oh god, my ad). The response was again woefully lack in detail. I responded again (I’m the worst) basically telling them this was silly and I’m done. They seemed offended. I should archived the first one, and I definitely should have archived all the rest of them.