Pretty sure, and user adwn commented on it too. It's a pretty common pattern to not answer the question and then indicate it was a dumb question in the first place. Then he doubled down on the acceptable insults in the follow-on response.
I'm sure I'm oversensitive to crap like this, but I don't think I'm wrong to notice it.
I wonder if HN would ever add a feature to block/hide users others don't want to see, something per reader. I don't see a browser addon for it, and while I'm sure it could be done purely client-side, you might find stats about who is being blocked and how often interesting if it was done on the server. Heh, I'm sure I would end up on a few people's list, but it doesn't seem likely that we're all just going to get along anytime soon.
Anyways, thank you again for the polite reply.