Revenge porn vs the First Amendment - Should it be illegal?

Here you go

I don’t know either and I’m not saying any particular law exists other than there are some laws which grant people ownership of their image.

When you say people routinely publish private pictures on places like Facebook and Instagram without a written release (which is obviously true) what is the specific relevant issue? Is it that this doesn’t count as publication? Is it that there is something about sites like Facebook and Instagram that makes them an exception? Is it that the pictures being published somehow not considered private? Is there some implied written release in effect? Or is this just an application of a general rule and there is no general protection in effect?