Sure, some admission offices do feel more welcoming than others and it may well be true that their attitude exemplified pre-enrollment is what one can expect from them in the future. Jdmhotness's point is that the attitude of any given institution's admissions department is not necessarily indicative of what the general environment, at this particular institution, is like.
While I do agree with hotness I still feel that Duke has really mishandled things and that this will, and I believe must, factor into my and others' decisions concerning whether or not to attend. What I fail to understand is how Duke still manages to sustain a great student body when they treat applicants the way that they do. For instance Jcosta, who has posted on this thread, received full-ride offers to Vanderbilt, PTS, and Yale and has still yet to hear from Duke concerning the status of his funding. Surely Duke realizes that his application is very strong and that, in all likelihood, he has received other offers (which he has). I am in a similar situation; I have made my other offers known to Duke's admission committee and they still will not give me any information other than the fact that I should hear sometime before April 15th (lol). All that being said, how can they expect to maintain the strongest student body possible when they mishandle applications and effectively lose out on many extraordinary candidates simply because of their poor procedures?