[catern]

>It always troubled me that there was so much vitriol for Maisel from the exact same community of people who rightly insist that free software licences are enforceable and that non-compliance should be shamed.

That community is generally opposed to copyright and intellectual property altogether. Copyleft is just a hack to create a space where it doesn't exist. If I could "infringe" on others without being punished, there would be no need for copyleft enforcement. That's the idea, anyway.

[unfocussed_mike]

Maybe, but they understand the difference between their principles/licences and the public domain. So does Jay Maisel -- his income depended on it.

And at any rate there is almost no place in the copyleft world for photographers like Maisel to earn a living at all, so he'd be within his rights to reject it entirely.