For all the accusation that porn is becoming mainstream, someone who loves number-porn has done the math, and sees porn either relatively stable, or declining in recent years. The only numbers that could remotely apply to internet porn are the 'men/women who have looked at porn' numbers, which are relatively consistent, with an unsurprising dip during the seventies, when people were fucking constantly, and had no time for porn. The print porn, including non- or semi-nude lad's mags, have been dropping off, but is consistent with overall magazine subscriptions and change to internet use. All I can say is, thank god that it's not mainstream; mainstream makes everything suck, with its homogenization! for the largest audience. Fetish porn would die away, unable to compete, and then what will Gary the 'Gay Furry in Pantyhose Fetishist' do? On the other hand, I think the accusation of porn going mainstream is that it's more okay to watch porn than before. People have always looked at porn, but formerly under the stigma of 'porn is bad for you'. Today, it's not just tolerated: porn is even good for you.