The porn industry is very well aware of the age of its performers. Pretty much any porn company will point you to its 18 USC Section 2257 record keeping (http://www.law.cornell.edu/uscode/text/18/2257). As a random example, on the front page of the site www.bangbus.com there's the following text:
"All girls appearing on this website are 18 years or older. Click here for records required pursuant to 18 U.S.C 22557 Statement."
Oh I know that side of it, but given that they have to be careful to stick within the legal framework I'd be interested how many would take the risk with a guy who's been accused of teenager sexualisation on a large scale on the internet. I'm sure a few won't care of course, he didn't break any laws after all.
Your post didn't say anything. What is this risk? Be specific, I have no idea what you think this magical risk is. You think the porn industry has "programmers can't find teenagers attractive" regulations?
"All girls appearing on this website are 18 years or older. Click here for records required pursuant to 18 U.S.C 22557 Statement."
And that click here leads to http://help.bangbrosonline.com/2257.php