It sucks if waitlisted candidates cannot be made offers after April 15. What is even more troubling is that people are holding on to multiple offers, almost hoarding offers. Sometimes even when they have accepted at some place. I understand this is an exceptionally crazy cycle but there is no point in holding on to offers this late. If a university wanted to revoke your offer, they would have done it earlier. I simply do not understand how people holding on and hoarding offers is helping. It only effects and hurts people on the waitlist. Sorry but as someone who is on 3 waitlists right now, I cannot mince my words. I am sure many share this frustration.