It’s not hard to 5x your productivity when you were close to zero to start with.
People with a lower multiplier are either in the minority of developers solving genuinely hard/novel problems or, more likely, they've just not figured out how to tap into AI's potential.
Granted, to your point, a decent chunk of the HN crowd belongs to the former and can't relate to us paycheck stealers.
* coming in with a bias of not wanting it to work
* having too high of an expectation
* giving up too early
* not trying SOTA models
* not taking the effort to communicate intuitive or painfully obvious things
But perhaps it is too dumb to solve the type of problems you guys are working on and no amount of cajoling will help. All I know is "it works for me."