[LinuxBender]

Seizing domains is not universal. How will you seize an .am or .su domain?

In theory I would use the over-sized hammer of sanctions. Not perfect, not nice but it gets results.

Your idea compelling the client software to respect the header will probably not survive the 1st amendment

I don't think it has to. There are plenty of controls on the internet that could be seen as interfering with speech such as forbidding kiddie-porn or threats of harm against people. I believe empowering parents to block porn does not in any way interfere with the U.S. constitution. The owner of a device still has the choice to allow or block whatever they wish. But I am not a supreme court judge. We should test this.

remove copyright protection for porn

There enlies the rub. That would remove most incentives to produce commercial porn. This leaves only self hosted amateurs and probably then even a sub-set... probably mostly exhibitionists as they can no longer make significant amounts of money from it, probably just some donations to get the actors to do custom things. Great for voyeurs however would quickly get boring for many others. "Put shoe on head" would still be a thing

[ttyprintk]

I’m sure a lawyer would have a better explanation, but I think the trick we rely on is that copyright is a Federal consideration and obscenity is locally defined. In court, a copyright infringement case cannot proceed if the material is obscene. What’s obscene in, say, Louisiana, might not be in Texas.