Not grumpy—the grandparent was being a total ass.

And you know that you either flag, or downvote, or ignore the asses.

(Or some combination.)

You don't write a post to call them idiots, even if they are.

I've been around here a lot longer than you have. I do know, and I have, but sometimes nastiness needs to be called out.

Sure, but you know that you shouldn't call put nastiness by being nasty.

No, I don't know that. I think I did the right thing. Thanks for chiming in, though.

A search for dang and for the word nastiness turns up many results of him asking people to stop being unpleasant.

Most relevant:

https://news.ycombinator.com/item?id=9658134

> Responding to nastiness with more nastiness is the surest way to destroy HN. The way to help is to gently point out that we all need to follow the site guidelines.

But there are very many others.