You could argue that the linked post in indulging in the reverse (a form of appeal to (false) authority): Person said X which is right, so what they say about Y must be right too. Altman has no particular authority here anymore than anyone else who works at a midsized company; that anyone bothered to write an article about his take is due to him being well-known in _completely different_ fields.

> Then why are you commenting on an article about what he is saying?

The article itself is an example of a sort of broken thinking which has become annoyingly common in HN-land, and is interesting for that reason, _not_ for its actual content.