[raverbashing]

"by complaining about the poster ("he was a terrible fit")"

This is not a complaint. I agree that "terrible" may be a bad word, but not being a correct fit is not wrong.

Not all people are great for all jobs. Even if they have the technical qualities.

A basketball player runs a lot on a game, but that doesn't mean he/she would be a great sprinter, as an example.

Culture fit is needed as much as a technical match