<p>People are accepted to Yale College, not to the engineering program, which is why you aren’t seeing people on the results thread accepted into engineering.</p>
<p>DO NOT send more supplemental materials. Yale discourages supplemental materials and it sounds like you’ve already sent them a lot. I’m not saying that sending in excessive amounts of supplemental materials is why you were deferred, but it didn’t help you and possibly annoyed the admissions officer.</p>