Quote - "......should those same parents be allowed to -- say -- set up a subscription website ..." 

Umh, I think that's where the "common sense" part comes in, though granted it's an endangered species these days,  .... There is a world of difference between family photos on Flickr and 'All nude babies all the time only $49.95 a month automatically renewing'

Thank you!  That was my point above when I asked what his example had to do with the picture hanging in a gallery.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi