For all of us straight but curious guys, or guys with limited experience, I think the draw to this site is that the guys do appear to be straight, but like with Mike, when asked, he doesn't know what his sexuality is, not that it matters, but I do think a lot of these guys line in a gray area.
I think what people like is that the guys are masculine, even those that are gay, they are not stereotypical gay guys, which is kind of refreshing. That said, I don't think the straight guy always needs to be paired with a gay guy in order to get a great scene. What would be nice is if the guys don't "TRY" so hard to be straight, like Ashton. Moreover, I think there are lots of guys who are like Ashton, that enjoy bottoming, but don't get hard, that doesn't mean that they are not turned on, good sex is a fully body thing, not always the dick.
What's the biggest turn off in Ashton's scenes is that his comments ruin the moment. Maybe he is naturally an asshole, or smartass, reminds me of the kid that got his ass kicked everyday back in school.....eventually the funniness wears off, and it just becomes simply annoying. I think Ashton has reached that point for a lot of viewers. And I know many think he is hot, but what happen to some of the buff, beefy, hairy, or semi-hairy guys of the past? If anything the site has become more about twinks, and porn site has beens, than it has been about undiscovered talent, fresh faces, and NATURAL, versus FORCED scenes.