It the results were posted it would become quite annoying because everyone on Bigfooty would just judge players based on their DC results ie "Why would we draft that crab, he runs 3.22 for 20m!!". Ignorance is bliss.
True, it's annoying enough just having the top tens and Hurley's 20m sprint time . It's all about how you apply your athletic abilities on the field and as such I don't wan't people making judgments over draft camp either.