It's seriously hard creating useful content and I really do feel like your negativity towards this is excessive compared to the faux pas in question.
Don't tell me how to be.
This is why I say it’s hard creating useful content for the web. Everyone is quick to attack but very few people are there to support. It’s a problem we should be even more accurately aware of during these difficult times of being on lockdown.
Obviously there will be times when constructive criticisms need to be raised but use of language is important — which I know is the same point you were making at the start but it’s just as relevant to you as it is the author. In fact HNs own policies ask that people write their corrections politely and constructively too.