I don't get your concern. In the OP you noted,
If someone is planning on doing something naughty they will take the time to go to the office.
Let me give you an example. Where I live one had to go to a government office in order to find out who owned the house next door which is public information. Now that information can be obtained on the net assuming one knows how to access the info (lot number, district number, etc) which my wife is quite adapt at.

Furthermore, we can find out what mortgage is owed on any particular house. So, we can check if our neighbor has a big mortgage or a small one.
Now, some may say that's an invasion of privacy but consider the following. If you were to enquire about purchasing that house the notary or lawyer (depending on where one lives) has to have that info, otherwise, you may pay the person for the house and they take the money and don't pay the mortgage. Then the bank comes after you for the money owed on the house.
When it comes to privacy I always remember when AIDS first appeared. People were treated like lepers until others stepped forward. The same thing with gays. The same thing with single motherhood. Whenever what used to be considered "private" has been exposed it changed people's attitude and almost always benefited those affected.