Really? I've read a lot of SIGGraph papers, and sure, they didn't provide all the code. But you know that the code exists. And certainly for those there's a lot of trust. I think we're talking here about something different. Not "hey, you can use quaternions for animation" but "If you factor in hippopotamus usage, young adults experience 22% more flange per square doughnut, and we got all this data, and we ran it through 25 separate computer programs written in lolcode, and look, proof!"