Arbitrary, yes. Vague, no. Except for the blue jacket, I think what was and was not allowed was pretty explicit. AAS and Stitchy were probably the only two entrants which were questionable (AAS's jacket being very close to being solid, and Stitchy's beauty hovering near navy). And these challenges are by their very nature arbitrary. This one time, we were forced to dress like patrickBOOTH for no good reason. "Kcccchhhhhh...sugarbutch, please report for reeducation. sugarbutch, please report for reeducation. Thank you, that is all."