Yeah I think the whole "the website is to help the user do a job" mostly exists to give people who do UX a position of authority. The user needs to do a job; we can't pre-specify that job entirely; users who are frustrated in their job will leave with it incomplete. Those three things are totally true, but they are often used to justify a third thing: input on website design should be driven by user feedback, filtered through UX research. A refusal of the third thing is where you get design like HN. You can do UX research; everyone should. But if it is more than merely an input into design, you become rudderless.