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<p>Au contraire. Carnegie Mellon’s acceptance letter took a week to get to my house, and for some people even longer. The only difference is that CMU was kind enough to have the decision available online 3 days after the mail was sent. That way, if the post office was slow (as it obviously was), people could still find out without calling.</p>
<p>I think that even if you want people to find out by mail instead of online, the way CMU does it is a courtesy that I appreciated. Wesleyan’s way of making you call if USPS screws up seems rather behind the times.</p>
<p>There’s absolutely no evidence that rejections/waitlists were treated any differently from acceptances.</p>