Anonymous wrote:ED is a scam to improve yield. It should be abolished.
Well that is a different issue. ED will never disappear because universities are a business and yes, surprisingly they want to ensure they fill their freshman class (and don't go over). So ED is a great tool for measuring yield
At this point, the rule is you withdraw all other applications once accepted ED unless you can be released due to not meeting financial need. So if you choose to participate in ED, you follow the rules.