As pointed out by many comments, the post seems US-centric and using zip code doesn't work for all countries. But just for reference, in Singapore, we use 6-di

As pointed out by many comments, the post seems US-centric and using zip code doesn't work for all countries. But just for reference, in Singapore, we use 6-digit zip codes, each of which can uniquely locate a single building, so yes, a lot of local websites essentially just expect a zip code plus unit number, without the hassle of typing out the address at all. Maybe what I wanted to say is, the idea is cool and _can_ work to enhance user experience with proper localization.