If anyone here keeps a porn collection saved on a drive somewhere, or on a bookshelf, be careful. Mistakes happen. Struggling upstart actors lie about their age. Material that was purchased legally on day one can suddenly become very dangerous to possess on day two. The laws in this area are draconian. If you have any reason to believe the material dangerous, such as a website disappearing for no apparent reason, delete the material. (This is not rare. It happens regularly. Though they would never admit it publicly, nearly every large porn studio has had some sort of issue at some point.)
Of course I would never advocate for the breaking of laws. If material is deemed illegal to possess then it must be destroyed. I speak only in the hypothetical in order to better educate those in authority on how they might discover and destroy illegal works of art.
That said, we are not even remotely in farenheit 451 territory. And the author of this article doesn't spend much effort even trying to claim or defend that position.