Could you elaborate, I'm failing to read between the lines.

The first part is weird and a little creepy. Really, he should listen to what she has to say, not look at a picture and say 'Yeah, I'd objectify her, she has a point'. Plus he had to click a few links deep to find a picture, so he went out of his way to see what some other commenter looks like, solely on the basis of gender. That's at least sexist, maybe you could really stretch and say it's salient to the conversation.

The second, parenthetical statement is what tips it way over the edge. It's like making a comment about 'culturalism' and then adding a footnote saying 'BTW, I'm totally not racist'. He obviously realizes that absent any context, saying "I spent at least 30 seconds hunting for a picture of you on the internet, person I've never met" is not socially appropriate. So he tries to shore it up with the fact that he's married, so obviously he has no interest in any other women outside of clinically judging their suitability for objectification.

This is further supported by the incredible, scientific claim that men's ability to process someone's comments on a message board is directly impacted by their ability to first judge that person's attractiveness - in a purely objective way, remember, he's married. No doubt this gentleman has a Firefox extension dedicated to finding all HN commenter's faces so he can better understand the cryptic squiggles they produce on his screen.