[aunderscored]

The problem is this reduces usability for others. Yes, there are many local to a country sites, but there are also large scale global ones. In both cases, you're not really gaining anything other than some clever autocomplete that could be far more precise if the site offered the correct fields so that whatever autocomplete tooling I use can put the data in for me.

The page itself specifically says "and country", however that too doesn't work. Other non us countries may have the same postal codes, or in my case mine is 4 digits, and I had to figure out that "oh, this is us only and it doesn't work at all for me", which was just entirely a waste of time.