How dare he ask for evidence!
Asking for evidence of claims is very offensive to those who don’t have any.
They feel very strongly about a topic, but it’s entirely based on their various personal experiences. They arrive at the conclusion first, and then try to arrange reality around their opinions.
It’s the phrasing/tone. It’s such a red flag.
As to his being answered: somebody responding to him in good faith does not suddenly validate what he was doing.
This poster likes to demand evidence of others (https://news.ycombinator.com/item?id=48135626) and bristle when the same standard is applied to them (https://news.ycombinator.com/item?id=48137932).
Someone else did provide evidence, though: https://news.ycombinator.com/item?id=48153756