Swedish tax records are public, but difficult to access, I think its a great system, if youre really curious you can go or call tax office and ask for anybodies tax numbers thus know how much they earn.

Its part of a transparent and open society. But there is no webservice somewhere where people can look on a map or search easily and so on.

If you take it to next level you can buy a book containing all names addreses and taxable income and capital for an area.

good system because its public like the records and not private.