Isn't that things are supposed to be? Prototype and then polish later. I think teams should work in layer like this, but I guess with big company they're just too lazy and assume you're smart enough and have time to take care of everything.
Right. Time was of the essence with this service, and it was still very reliable and scalable in its original simple form, because it leaned on a lot of existing Google infrastructure. Later on it got upgraded to follow the rules better.
