I've read these types of remarks for several weeks --- something to the tune of "schools want to know where I am accepted so they will know whether to, or not to, make an offer...." I can only respond based on my frame of reference which is my school and the state of Florida for the most part. We may have an renegade interviewer or two who may ask where you have been interviewed or even accepted. We prefer that they dont ask. We have never, ever, in my 5 year association in this admissions office considered where an applicant has been accepted prior to offering a seat and not made an offer when the time came. We go strictly by the ranked wait list that we have from our admissions committee. If the next applicant on the list has been accepted by several schools, we still make the offer. I have a strong feeling that that is the case throughout the Florida schools.
Maybe it happens elsewhere, I cant say for sure, but based on many meetings with other admissions officers at national and regional meetings, I cant say that I have ever heard any chit chat that an admissions office would pass up an offer because the applicant was accepted elsewhere. I dont question that applicants are being asked. I do question the thought that applicants are not being offered acceptances because of where they have already been accepted.
Note to Zook: The way I selected the reply it appears that I am responding to your post. I am not, I meant to respond to the subject at hand. In fact the postulation at the end of your post may be more on target in that schools may be fearful of losing an applicant, but I think most will make the offer of acceptance. Most admissions offices are competitive enough to make an offer in hopes of luring a good candidate to their program even though already accepted elsewhere. In some cases it may be like the Texans beating the Colts, not likely to happen often, but it will happen enough times just to keep you trying.