What is being argued here is whether you can live comfortably on a six figure net salary (after taxes).
That housing is expensive in the bay area does suck, no doubt, and is super annoying. But it's far worse for non-engineers. Engineers are fine, and frankly, are the ones who are driving the prices up, by virtue of being capable of and willing to pay more, as companies continue to increase compensation.
The average software as a service CRUD journeymen developer could do that in many non west coast cities could do that with an FHA loan with less than $15K down with 3-5 with a salary they can make with around 5 years experience. If they are part of a married dual income couple they would be quite comfortable.
For some reason most of them have the original gross beige carpet too.
And people on HN wonder why software engineers living in other major cities in the US have no interest in going to the west coast.