"Pretty sure you're making this up" is no way to argue, let alone be taken seriously, on HN.
Best not to be 'pretty sure' with accusations, even mild ones, especially when you're apparently wrong. And why are you pretty sure? Seems like you have some reasoning, mention why with your accusation or your viewpoint will be 0 on the contribution scale. It comes across like a child discussing whether or not he thinks Santa is real "Yea I'm pretty sure he exists and you're making it up"
Next time, perhaps phrase your argument around your experience. "While I don't know where you're from, I never experienced this. Where I grew up in XYZ, people were quickly corrected regarding their misconceptions."