I took the interview in the early days, and I "failed" because I didn't rote memorize whether 192 VBR MP3 would trump a MP3 V2 or something like that; "you look it up in the site rules" wasn't an acceptable answer. I get they want to exclude clueless humps, but at some point you're not testing for cluelessness but memorisation skills. That kind of turned me off.