<p>It’s rude not to send out rejection letters? That’s another 20,000 papers, not to mention envelopes and stamps and lots of ink, to send to people who most likely don’t want to see it. It’s smart not to send them out now that they have reached a point in the volume of their applicants that it’s neither practical nor wise. Notice that they allow you the option of requesting it anyway, which is nice of them.</p>