Isn’t leaving one’s curtains open a kind of negligence? Are you merely trying to demonstrate that it is okay for a negligent individual to suffer the consequences of the negligence or are you actually trying to demonstrate that there is no right to privacy?
I cannot think of a reason why anyone shouldn’t suffer the consequence of their actions.
“Whom you kissed last night” doesn’t sound like information that would be particularly damaging.
It could be if the person kissed was not your spouse.
(1) Suppose I am rich and I hate a particular person, but that person doesn’t know that. I invite the person to my home for a discussion about The Satanic Verses. Hidden cameras record the person praising the book. I find television programs that have large Muslim audiences. I pay for the recording to be broadcast again and again and again during those programs.
If the person recorded was not given any assurances that his voice would not be recorded, he has no case against the surreptitious recordist.
(2) Suppose I develop window coverings that are opaque for visible light, but completely transparent for a whole range of frequences invisible to the human eye. I keep this fact a secret. I get a contract to install them in a hotel or apartment building that has lots of windows. I rent a location across the street and for several years, using a camera that records frequencies not visible to the human eye, I film people having sex. I sell the films as pornography.
Stay only in hotels that offer a guarantee of privacy. If someone gets videos of your naughty activities, you have a case against the hotel.
(3) I build miniature remote-controlled blimps that contain remote-controlled telescopic cameras that transmit visual information to me. The blimps are designed to look like floating advertisements for soda pop. I fly the blimps near restaurants that have windows with no window coverings. I record names and credit card numbers and I sell the information to criminal organizations.
Not a rights violation, unless the recorder of restaurants himself engages in credit card fraud. Keep your credit card inside an opaque sleeve.