Again, I don't think this is quite the case. I get the feeling that most of our negative perceptions are coming from the same person, the one who usually answers the phone. I've called the admissions office a million times with various questions, and only once have a gotten a blatantly unhelpful answer, but I do know that it's usually the same person on the other end of the line. Waiting is hard, but UNC's not the only school who hasn't gotten out all their decisions yet (know this from experience), and whatever feeling of superiority this one phone-answerer seems to be giving out (again, I'd bet anything that Dean States is doing what he can, but he's only one guy), it's not universal to the school or even to the administration. I spoke to the registrar lady earlier today and she was one of the most eager-to-help people I've ever spoken to -- she almost even made me late for class.
I applied to 17 schools, only Cornell and UNC haven't gotten back with me yet and even Cornell, which is notoriously slow, has been rolling out decisions over the past month. All the schools I applied to with a rank similar to UNC got back to me in under a month and here were are, 3 and a half months after I applied and the status checker hasn't even shown me under review.
My impression of the school has nothing to do with people on the phone (I only had to call once and it was something trivial). I just think it's crazy for them to take this long, especially since my numbers should make me an auto-admit (I realize that this sounds incredibly pompous, and it is, but realistically I got 75-100% scholarships at UNC's peer schools).
Right now Cornell is on track to get me a decision faster than UNC and there's just something wrong with that picture.