There's something strange going on, the comment you replied to was posted three days ago according to the user's profile, but it says 43 minutes ago here. You probably read it when it was new, I recognized it as well.
I think if dang merges discussions from other submissions, the time gets reset to when he did it on this page, but not the user page. I might be mistaken about that though.
Maybe I'm hallucinating but I have read this EXACT line somewhere else before...