I don't have enough knowledge on the topic to say whether the article is good or bad, nor if I should listen to someone on HN who says it is bad, hence asking to know what the credentials of someone are who attacked someone else's lack of credentials, yet made no actual intellectual counterpoints.

Stop telling strangers how to live their life. That's some control freak territory.

The person they are replying to made it about credentials

Don’t whip out credentials as a way of discounting someone if you aren’t ready to have your own pulled.

See above.