High Noon

Why do so many youtube reviews of amps and effects always begin with all the controls at noon? I wonder if people actually set their gear up that way. Electronically, there's usually nothing special about noon (i.e. it's usually not "flat") and the device rarely sounds its best dialed that way. I don't do video reviews but if I did, I'd dial up the best sounds that it was capable of. And maybe the worst as well.