That isn't a personal attack on a HNer (unless the tech support happens to be a HNer, then that's unintentional). If my project does well enough to get a HN discussion, I'm sure I'll be stunned at the rude responses, but that's not people trying to be mean, it's just that people talking about someone they see as a third party tend to be a lot more straight-talking than if they are talking about each-other.

It's just that asking somebody to show some ID just because their name seems strange seems a bit ... strange. It's a website, not a home loan.