I have. HR knows that CS PhDs will work for peanuts because they've had their financial self-esteem slowly beaten out of them over the past five years. East Coast hedge funds mostly hire physics and applied math PhDs. Masters +10 PhD -30 but YMMV.

I think it depends on the job. If it doesn't take advantage of your research abilities, then a freshly-minted PhD (without other work experience) probably won't be paid too much more than a M. Sc. (less than an undergrad is plainly nonsense, though). But if you're taking a job at a place like MSR or IBM Research, not only is a PhD essentially a job requirement, but the starting salary is typically around $130k.

Clearly CS PhDs are different from CS DPhils. :-)

is that supposed to be +30? else that doesn't make sense?

I think he means the PhDs have been flogged by academia longer than the Masters, who thus retain a modicum of self-worth.

I don't know about starting salaries, but DC-area hiring is plentiful, and you should be able to hit $100k in a few years (if not sooner). Of course if you want to be under the bright lights, and not spend your career backstage, then: Go west, young man.

Wow, way to make me feel bad for being a postdoc! :(

(Computational physics, not CS, but still...)

I worked as a postdoc for a while, too. The lower salary is the price to pay for having more freedom in our research (and freedom to publish). :-)