People posting on HN usually work on web applications. Those don't need to serve ads because somebody is already paying for the service provided (e.g. Netflix, Salesforce, JIRA).
Similarly, they don't serve annoying email popups because every user is already logged in, and their email is already known. A random website you came across while searching for X, doesn't have that luxury.
So they can afford to talk about bad UX elsewhere, because their websites don't have to compromise on UX to make money.
People posting on HN usually work on web applications. Those don't need to serve ads because somebody is already paying for the service provided (e.g. Netflix, Salesforce, JIRA).
Similarly, they don't serve annoying email popups because every user is already logged in, and their email is already known. A random website you came across while searching for X, doesn't have that luxury.
So they can afford to talk about bad UX elsewhere, because their websites don't have to compromise on UX to make money.