Whenever you change something, it should be for the better. Steve Jobs was notorious for this. People fell in love with something that managed to stay cutting edge continuously for a long period of time.
Rolling out updates for phones and webpages is hard to do, mainly because when you have developers work with their products, they do not have a homogenized setup that is congruent to what all of the customers/clie
nts will be using, neither can they replicate the traffic and heavy usage that their program or update will attempt to sustain when it is released.
That being said, simple visual cues and button/program functionality is something you CAN test.
That being said, the new layout YouTube ha...