Real simple, just target Pat Banyion on all of his social media outlets he uses to advertise his lies: youtube, facebook, twitter, everywhere and anywhere he says he's a natural. You all will be doing a good thing and ridding this liar of his vehicles for spreading filthy untruths.
Post photographic evidence of his lies (how his "natural" physique can stand with top 70's drugged physiques) or use words to explain why he's a filthy lying piece of shit, but be polite and never curse, and your message will overpower his lies.