From my own experience from working in an office over the summer, I often had to check my emails from the different team members. The ones with the appealing titles caught my interest first, whether they were work related or jokes. I always opened them first. To the sender, their job is to make the email sound and look appealing, lke an office competition as to see whose email will be opened first.
That's an interesting way of thinking about it. There are so many things begging for our attention, and the in-boxes of most professionals is always more full than they would like. Thanks for sharing your experience with this subject.