What's great about this is you don't need evidence. People just need to believe it. People at large have a large number of vices they do in private, but the moment our private lives are made public it is very common for others to point the finger and say how dare they do that, even when said person does the same thing.

I remember hearing a court case where a small video rental shop was accused of renting vulgar content by someone claiming that the community standards didn’t allow pornography. This was in an area that is predominantly religious. So it hinged on whether it was true or not that people viewed such material in private. The defense was able to find both rental and internet traffic data for the region demonstrating viewing porn was basically the norm for a large percentage of the community. The court found for the video store, but IIRC the legal costs still destroyed the business.

I don't think the parent was asserting that this is true, just that this is the general public sentiment in many societies (which I'd agree with, unfortunately).