Maybe not specifically PH but porn actually always was the driving force for the net since day 1. We don't have high speed net now because someone needed to download a linux-distro quicker. Or google harder. YouTube and vimeo and such came waaaaaaay later. There also were no social media where people needed to upload large dog-pics. It was porn. Everyone wanted their tits to download NOW not somewhere in the future.

And I vividly remember the times where you had to wait for a long while to see your image grow line by line until you finally maybe saw said tit, and it surely - and hopefully - wasn't a bird 😁

I have no studies at hand but I'd bet part of my left nut on that theory. Hence I found that image concluding.