[aidenn0]

> You could say a transparent window is literally made for the purpose to be able to see through, but I'm certain I'd be breaking the law if I started taking pictures of people undressing in their homes.

Disclaimer: IANAL. Also, don't take creepy photos of your neighbors through their windows regardless of the legality of doing so.

In many parts of the US at least, the law is less clear-cut than you might think. In many jurisdictions you would have to argue that the photos were of a sexual nature (probably not hard for pictures of people undressing, but it's not an automatic win depending on context). In some states and/or localities there are explicit laws preserving privacy when in ones residence, but in many others, a photograph taken through an unshaded window is legal as long as it doesn't violate other laws.

[edit]

I guess all of the above strengthens your point that such simplistic laws as "a 200 response means you are authorized to do what you want with it" are not in any way analogous to the way laws for other systems work.