It’s been around in different forms for thousands of years. Look at India and their Kama Sutra images as an example. The internet just makes it easier to view it.
True, but I think Ms. Wolf has a point. It is so available, without stigma, without the rest of the world (other than your ISP) knowing about it, that it is being consumed (probably, roughly) at 100 times the per-capita rate it was before.
That can't be good - sex is a dopamine-releasing process. And it ties in with what friends of mine are saying behind closed doors.