When the internet started back in the days, pornography was one of the driving forces behind it. We can deny it all we want, but pornography has been a large part of every internet technology that was developed after that.
The porn industry takes a huge part of the internet bandwidth we use each day.

I have read the white paper a few times and it makes no mention about this, but Satoshi might have envisioned this too, when he thought of this. <Micro payments will serve the porn industry well, when people use it for pay-per-view>