Earlier quoted context omitted.
1. HN is not "an informed audience", it's literally the public. And it's common for software developers to mistake themselves for domain experts on any domain but they aren't. 2. It's not an informed audience if misinformation is not challenged, it's a misinformed audience. 3. The flu is a bad parallel. The flu, while annually killing lots of people, does not overwhelm hospitals like a novel virus does. At best it ma…
Regarding 3, upper estimates for the 2009 swine flu are north of 500k deaths and the 1918 Spanish flu is 50 million. Flus can be very deadly and the poster obviously did not intend to use the word in a diminutive way. You added that interpretation, knowing it is wrong, and then challenged it.
So yes, the poster was using flu in a diminutive sense. And yes, flu is deadly and a lot worse than a lot of people (who've probably never had flu) realise. But even given that, even recent novel flu strains haven't stressed and shut down the global economy like this pandemic has.