Earlier quoted context omitted.
I'd add that for jobs in startups (a focus for the HN crowd) salaries are particularly low.
Why is this the case? I'm a frontend dev for a startup in London and I make 18k annually (80% of that because I only work 4 days a week). It's peanuts, but luckily I don't mind being poor.
I find trying to live in an expensive city while on a low salary admirable.