That's kind of BS. Porn is popular and addictive, and the internet is a huge megaphone, that doesn't make it respectable, the same way that pooping is not a respectable genre, despite the huge popularity of the act.
"Science fiction should get out of the classroom and back in the gutter where it belongs!" -Dena Benatan Brown.
Sci-fi is decently respected now, but some authors have gladly embraced Dena Brown's advice. When writing science fiction, you shouldn't care about respectability. That's not the point.
So yeah. Same goes with porn. Porn doesn't care if it's respectable. That is not porn's goal.
I 'm not against porn or anything, but i do think porn and sex is overrated in culture (perhaps out of spite for the christian oppression of the past?). Porn is popular, but it's not like it earned it, we are wired to be addicted to it (there's quite a lot of research on the addictiveness of porn). The fact that it's popular and drives a lot of internet traffic does not mean a negative view of porn is wrong. Alcohol and gambling are popular and drive a lot of resources does it mean they are not negative?
You're arguing against a strawman. I didn't say a negative view of porn is wrong. I said SpaceDragon was wrong because he views "anyone who indulges in porn" as uncompetitive, lacking self-control and settles for fantasy. And that's factually wrong.
In any case, I don't see how porn being or not a respectable genre does in any way invalidate what I wrote.