Indeed. I was in Sweden and learned that you can look up someone's address and pay on a government website. I think there are some "are you human" checks, but it's basically all in the clear.

It creeped me out a bit and then I was angry when I realized it's the same way in the US, but maybe worse. In the US this is possible too, you just have to pay private data brokers and a bunch of middle men make a cheap buck. Employers sell your pay data, websites sell your address. Everyone makes a buck at your expense.